100776465808 has 20 divisors (see below), whose sum is σ = 196245547740. Its totient is φ = 50132453504.

The previous prime is 100776465773. The next prime is 100776465809. The reversal of 100776465808 is 808564677001.

It can be written as a sum of positive squares in 2 ways, for example, as 99545298064 + 1231167744 = 315508^2 + 35088^2 .

It is not an unprimeable number, because it can be changed into a prime (100776465809) 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, 15982963 + ... + 15989266.

It is an arithmetic number, because the mean of its divisors is an integer number (9812277387).

Almost surely, 2^100776465808 is an apocalyptic number.

It is an amenable number.

100776465808 is a deficient number, since it is larger than the sum of its proper divisors (95469081932).

100776465808 is a wasteful number, since it uses less digits than its factorization.

100776465808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31972434 (or 31972428 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 100776465808 in words is "one hundred billion, seven hundred seventy-six million, four hundred sixty-five thousand, eight hundred eight".