642611604462 has 32 divisors (see below), whose sum is σ = 1311460191360. Its totient is φ = 209843306400.

The previous prime is 642611604457. The next prime is 642611604473. The reversal of 642611604462 is 264406116246.

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, 1323664 + ... + 1742787.

It is an arithmetic number, because the mean of its divisors is an integer number (40983130980).

Almost surely, 2^642611604462 is an apocalyptic number.

642611604462 is an abundant number, since it is smaller than the sum of its proper divisors (668848586898).

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

642611604462 is a wasteful number, since it uses less digits than its factorization.

642611604462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067168.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 642611604462 in words is "six hundred forty-two billion, six hundred eleven million, six hundred four thousand, four hundred sixty-two".