642207064035704 has 16 divisors (see below), whose sum is σ = 1226857834597320. Its totient is φ = 315044974809760.

The previous prime is 642207064035689. The next prime is 642207064035709. The reversal of 642207064035704 is 407530460702246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642207064035709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757319650562 + ... + 757319651409.

Almost surely, 2^{642207064035704} is an apocalyptic number.

It is an amenable number.

642207064035704 is a deficient number, since it is larger than the sum of its proper divisors (584650770561616).

642207064035704 is a wasteful number, since it uses less digits than its factorization.

642207064035704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514639302030 (or 1514639302026 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 50.

The spelling of 642207064035704 in words is "six hundred forty-two trillion, two hundred seven billion, sixty-four million, thirty-five thousand, seven hundred four".