426520516330631 has 8 divisors (see below), whose sum is σ = 429193979544960. Its totient is φ = 423847745469432.

The previous prime is 426520516330619. The next prime is 426520516330691. The reversal of 426520516330631 is 136033615025624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 426520516330631 - 2²⁶ = 426520449221767 is a prime.

It is a super-2 number, since 2×426520516330631² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426520516330691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171852305 + ... + 174316538.

It is an arithmetic number, because the mean of its divisors is an integer number (53649247443120).

Almost surely, 2^{426520516330631} is an apocalyptic number.

426520516330631 is a deficient number, since it is larger than the sum of its proper divisors (2673463214329).

426520516330631 is a wasteful number, since it uses less digits than its factorization.

426520516330631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346176565.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 426520516330631 in words is "four hundred twenty-six trillion, five hundred twenty billion, five hundred sixteen million, three hundred thirty thousand, six hundred thirty-one".