426974818831 has 16 divisors (see below), whose sum is σ = 469897198848. Its totient is φ = 387946536120.

The previous prime is 426974818817. The next prime is 426974818859. The reversal of 426974818831 is 138818479624.

It is not a de Polignac number, because 426974818831 - 2³⁵ = 392615080463 is a prime.

It is a super-2 number, since 2×426974818831² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426974818831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426974818801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2371516 + ... + 2545198.

It is an arithmetic number, because the mean of its divisors is an integer number (29368574928).

Almost surely, 2^426974818831 is an apocalyptic number.

426974818831 is a deficient number, since it is larger than the sum of its proper divisors (42922380017).

426974818831 is a wasteful number, since it uses less digits than its factorization.

426974818831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175563 (or 175541 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The spelling of 426974818831 in words is "four hundred twenty-six billion, nine hundred seventy-four million, eight hundred eighteen thousand, eight hundred thirty-one".