426532235624 has 64 divisors (see below), whose sum is σ = 880116753600. Its totient is φ = 192181017600.

The previous prime is 426532235587. The next prime is 426532235641.

It is a happy number.

426532235624 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 5752064 + ... + 5825744.

It is an arithmetic number, because the mean of its divisors is an integer number (13751824275).

Almost surely, 2^426532235624 is an apocalyptic number.

426532235624 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 426532235624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440058376800).

426532235624 is an abundant number, since it is smaller than the sum of its proper divisors (453584517976).

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

426532235624 is a wasteful number, since it uses less digits than its factorization.

426532235624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74274 (or 74270 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 44.

The spelling of 426532235624 in words is "four hundred twenty-six billion, five hundred thirty-two million, two hundred thirty-five thousand, six hundred twenty-four".