4197495390841 has 3 divisors (see below), whose sum is σ = 4197497439621. Its totient is φ = 4197493342062.

The previous prime is 4197495390839. The next prime is 4197495390887. The reversal of 4197495390841 is 1480935947914.

It is a happy number.

The square root of 4197495390841 is 2048779.

It is a perfect power (a square), and thus also a powerful number.

4197495390841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 4197495390841 - 2¹ = 4197495390839 is a prime.

It is a super-2 number, since 2×4197495390841² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4197495396841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1024390 + ... + 3073168.

It is an arithmetic number, because the mean of its divisors is an integer number (1399165813207).

Almost surely, 2^{4197495390841} is an apocalyptic number.

4197495390841 is the 2048779-th square number.

4197495390841 is the 1024390-th centered octagonal number.

It is an amenable number.

4197495390841 is a deficient number, since it is larger than the sum of its proper divisors (2048780).

4197495390841 is an frugal number, since it uses more digits than its factorization.

4197495390841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097558 (or 2048779 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 64.

Multiplying 4197495390841 by its sum of digits (64), we get a square (268639705013824 = 16390232²).

The spelling of 4197495390841 in words is "four trillion, one hundred ninety-seven billion, four hundred ninety-five million, three hundred ninety thousand, eight hundred forty-one".