425634442634 has 32 divisors (see below), whose sum is σ = 662985648000. Its totient is φ = 204695995840.

The previous prime is 425634442633. The next prime is 425634442657. The reversal of 425634442634 is 436244436524.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (425634442633) 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, 35150009 + ... + 35162115.

It is an arithmetic number, because the mean of its divisors is an integer number (20718301500).

Almost surely, 2^425634442634 is an apocalyptic number.

425634442634 is a deficient number, since it is larger than the sum of its proper divisors (237351205366).

425634442634 is a wasteful number, since it uses less digits than its factorization.

425634442634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14398.

The product of its digits is 6635520, while the sum is 47.

The spelling of 425634442634 in words is "four hundred twenty-five billion, six hundred thirty-four million, four hundred forty-two thousand, six hundred thirty-four".