842997586201 has 3 divisors (see below), whose sum is σ = 842998504351. Its totient is φ = 842996668052.

The previous prime is 842997586183. The next prime is 842997586237. The reversal of 842997586201 is 102685799248.

The square root of 842997586201 is 918149.

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

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 can be written as a sum of positive squares in only one way, i.e., 740200401801 + 102797184400 = 860349^2 + 320620^2 .

It is not a de Polignac number, because 842997586201 - 2⁷ = 842997586073 is a prime.

It is a super-2 number, since 2×842997586201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842997586201.

It is not an unprimeable number, because it can be changed into a prime (842997586801) 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, 459075 + ... + 1377223.

Almost surely, 2^842997586201 is an apocalyptic number.

842997586201 is the 918149-th square number.

842997586201 is the 459075-th centered octagonal number.

It is an amenable number.

842997586201 is a deficient number, since it is larger than the sum of its proper divisors (918150).

842997586201 is an frugal number, since it uses more digits than its factorization.

842997586201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836298 (or 918149 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 842997586201 in words is "eight hundred forty-two billion, nine hundred ninety-seven million, five hundred eighty-six thousand, two hundred one".