75656005679 has 4 divisors (see below), whose sum is σ = 76938310920. Its totient is φ = 74373700440.

The previous prime is 75656005669. The next prime is 75656005687. The reversal of 75656005679 is 97650065657.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75656005679 - 2³⁶ = 6936528943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75656005619) 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, 641152532 + ... + 641152649.

It is an arithmetic number, because the mean of its divisors is an integer number (19234577730).

Almost surely, 2^75656005679 is an apocalyptic number.

75656005679 is a deficient number, since it is larger than the sum of its proper divisors (1282305241).

75656005679 is a wasteful number, since it uses less digits than its factorization.

75656005679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282305240.

The product of its (nonzero) digits is 11907000, while the sum is 56.

The spelling of 75656005679 in words is "seventy-five billion, six hundred fifty-six million, five thousand, six hundred seventy-nine".