75377091891 has 16 divisors (see below), whose sum is σ = 102160718240. Its totient is φ = 49422597120.

The previous prime is 75377091871. The next prime is 75377091917. The reversal of 75377091891 is 19819077357.

It is a happy number.

It is not a de Polignac number, because 75377091891 - 2⁷ = 75377091763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75377091841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2927811 + ... + 2953443.

It is an arithmetic number, because the mean of its divisors is an integer number (6385044890).

Almost surely, 2^75377091891 is an apocalyptic number.

75377091891 is a deficient number, since it is larger than the sum of its proper divisors (26783626349).

75377091891 is a wasteful number, since it uses less digits than its factorization.

75377091891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41766.

The product of its (nonzero) digits is 3333960, while the sum is 57.

The spelling of 75377091891 in words is "seventy-five billion, three hundred seventy-seven million, ninety-one thousand, eight hundred ninety-one".