642076675 has 12 divisors (see below), whose sum is σ = 823630320. Its totient is φ = 495948320.

The previous prime is 642076661. The next prime is 642076679. The reversal of 642076675 is 576670246.

It is not a de Polignac number, because 642076675 - 2²¹ = 639979523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642076679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442087 + ... + 443536.

It is an arithmetic number, because the mean of its divisors is an integer number (68635860).

Almost surely, 2^642076675 is an apocalyptic number.

642076675 is a deficient number, since it is larger than the sum of its proper divisors (181553645).

642076675 is a wasteful number, since it uses less digits than its factorization.

642076675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885662 (or 885657 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 642076675 is about 25339.2319339004. The cubic root of 642076675 is about 862.7049656406.

The spelling of 642076675 in words is "six hundred forty-two million, seventy-six thousand, six hundred seventy-five".