75750991877 has 4 divisors (see below), whose sum is σ = 82637445696. Its totient is φ = 68864538060.

The previous prime is 75750991861. The next prime is 75750991891. The reversal of 75750991877 is 77819905757.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75750991877 - 2⁴ = 75750991861 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 (75750991777) 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, 3443226893 + ... + 3443226914.

It is an arithmetic number, because the mean of its divisors is an integer number (20659361424).

Almost surely, 2^75750991877 is an apocalyptic number.

It is an amenable number.

75750991877 is a deficient number, since it is larger than the sum of its proper divisors (6886453819).

75750991877 is a wasteful number, since it uses less digits than its factorization.

75750991877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886453818.

The product of its (nonzero) digits is 38896200, while the sum is 65.

The spelling of 75750991877 in words is "seventy-five billion, seven hundred fifty million, nine hundred ninety-one thousand, eight hundred seventy-seven".