4197157805 has 16 divisors (see below), whose sum is σ = 5057277120. Its totient is φ = 3343963392.

The previous prime is 4197157801. The next prime is 4197157813. The reversal of 4197157805 is 5087517914.

It is a cyclic number.

It is not a de Polignac number, because 4197157805 - 2² = 4197157801 is a prime.

It is a super-2 number, since 2×4197157805² = 35232267280144836050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4197157805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4197157801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1850282 + ... + 1852548.

It is an arithmetic number, because the mean of its divisors is an integer number (316079820).

Almost surely, 2^4197157805 is an apocalyptic number.

It is an amenable number.

4197157805 is a deficient number, since it is larger than the sum of its proper divisors (860119315).

4197157805 is a wasteful number, since it uses less digits than its factorization.

4197157805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628.

The product of its (nonzero) digits is 352800, while the sum is 47.

The square root of 4197157805 is about 64785.4752625926. The cubic root of 4197157805 is about 1613.0646211344.

The spelling of 4197157805 in words is "four billion, one hundred ninety-seven million, one hundred fifty-seven thousand, eight hundred five".