424531625634 has 64 divisors (see below), whose sum is σ = 956750745600. Its totient is φ = 139513744656.

The previous prime is 424531625621. The next prime is 424531625657. The reversal of 424531625634 is 436526135424.

424531625634 is a `hidden beast` number, since 4 + 2 + 4 + 5 + 3 + 1 + 6 + 2 + 5 + 634 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 424531625634.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2840827 + ... + 2986529.

It is an arithmetic number, because the mean of its divisors is an integer number (14949230400).

Almost surely, 2^424531625634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424531625634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478375372800).

424531625634 is an abundant number, since it is smaller than the sum of its proper divisors (532219119966).

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

424531625634 is a wasteful number, since it uses less digits than its factorization.

424531625634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146476 (or 146470 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The spelling of 424531625634 in words is "four hundred twenty-four billion, five hundred thirty-one million, six hundred twenty-five thousand, six hundred thirty-four".