426736637624 has 96 divisors (see below), whose sum is σ = 896165655120. Its totient is φ = 188878080000.

The previous prime is 426736637623. The next prime is 426736637633.

426736637624 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 426736637624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426736637623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54755072 + ... + 54762864.

Almost surely, 2^426736637624 is an apocalyptic number.

426736637624 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426736637624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448082827560).

426736637624 is an abundant number, since it is smaller than the sum of its proper divisors (469429017496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426736637624 is a wasteful number, since it uses less digits than its factorization.

426736637624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8073 (or 7968 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 56.

The spelling of 426736637624 in words is "four hundred twenty-six billion, seven hundred thirty-six million, six hundred thirty-seven thousand, six hundred twenty-four".