426691196624 has 80 divisors (see below), whose sum is σ = 1031290707456. Its totient is φ = 166149436800.

The previous prime is 426691196593. The next prime is 426691196639.

426691196624 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 426691196624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104679 + ... + 2298489.

Almost surely, 2^426691196624 is an apocalyptic number.

426691196624 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 426691196624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515645353728).

426691196624 is an abundant number, since it is smaller than the sum of its proper divisors (604599510832).

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

426691196624 is a wasteful number, since it uses less digits than its factorization.

426691196624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195624 (or 195618 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 56.

The spelling of 426691196624 in words is "four hundred twenty-six billion, six hundred ninety-one million, one hundred ninety-six thousand, six hundred twenty-four".