642634604214 has 64 divisors (see below), whose sum is σ = 1432865376000. Its totient is φ = 190950801408.

The previous prime is 642634604207. The next prime is 642634604257. The reversal of 642634604214 is 412406436246.

It is a happy number.

It is a congruent number.

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, 7903414 + ... + 7984310.

It is an arithmetic number, because the mean of its divisors is an integer number (22388521500).

Almost surely, 2^642634604214 is an apocalyptic number.

642634604214 is an abundant number, since it is smaller than the sum of its proper divisors (790230771786).

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

642634604214 is a wasteful number, since it uses less digits than its factorization.

642634604214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85037.

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 642634604214 in words is "six hundred forty-two billion, six hundred thirty-four million, six hundred four thousand, two hundred fourteen".