75496634879 has 4 divisors (see below), whose sum is σ = 76776238920. Its totient is φ = 74217030840.

The previous prime is 75496634849. The next prime is 75496634921. The reversal of 75496634879 is 97843669457.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75496634879 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 (75496634849) 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, 639801932 + ... + 639802049.

It is an arithmetic number, because the mean of its divisors is an integer number (19194059730).

Almost surely, 2^75496634879 is an apocalyptic number.

75496634879 is a deficient number, since it is larger than the sum of its proper divisors (1279604041).

75496634879 is a wasteful number, since it uses less digits than its factorization.

75496634879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279604040.

The product of its digits is 274337280, while the sum is 68.

The spelling of 75496634879 in words is "seventy-five billion, four hundred ninety-six million, six hundred thirty-four thousand, eight hundred seventy-nine".