75640863412 has 12 divisors (see below), whose sum is σ = 136641559936. Its totient is φ = 36600417720.

The previous prime is 75640863409. The next prime is 75640863413. The reversal of 75640863412 is 21436804657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75640863413) 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, 305003358 + ... + 305003605.

Almost surely, 2^75640863412 is an apocalyptic number.

It is an amenable number.

75640863412 is a deficient number, since it is larger than the sum of its proper divisors (61000696524).

75640863412 is a wasteful number, since it uses less digits than its factorization.

75640863412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610006998 (or 610006996 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 75640863412 in words is "seventy-five billion, six hundred forty million, eight hundred sixty-three thousand, four hundred twelve".