521070079601 has 4 divisors (see below), whose sum is σ = 551721260772. Its totient is φ = 490418898432.

The previous prime is 521070079597. The next prime is 521070079643. The reversal of 521070079601 is 106970070125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478448890000 + 42621189601 = 691700^2 + 206449^2 .

It is not a de Polignac number, because 521070079601 - 2² = 521070079597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521070076601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15325590560 + ... + 15325590593.

It is an arithmetic number, because the mean of its divisors is an integer number (137930315193).

Almost surely, 2^521070079601 is an apocalyptic number.

It is an amenable number.

521070079601 is a deficient number, since it is larger than the sum of its proper divisors (30651181171).

521070079601 is a wasteful number, since it uses less digits than its factorization.

521070079601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30651181170.

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 521070079601 in words is "five hundred twenty-one billion, seventy million, seventy-nine thousand, six hundred one".