75678564 has 48 divisors (see below), whose sum is σ = 196313600. Its totient is φ = 22533120.

The previous prime is 75678563. The next prime is 75678571. The reversal of 75678564 is 46587657.

It is not an unprimeable number, because it can be changed into a prime (75678563) 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, 2989 + ... + 12660.

Almost surely, 2^75678564 is an apocalyptic number.

It is an amenable number.

75678564 is an abundant number, since it is smaller than the sum of its proper divisors (120635036).

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

75678564 is a wasteful number, since it uses less digits than its factorization.

75678564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15700 (or 15698 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 75678564 is about 8699.3427337932. The cubic root of 75678564 is about 422.9843451667.

The spelling of 75678564 in words is "seventy-five million, six hundred seventy-eight thousand, five hundred sixty-four".