100788832781 has 16 divisors (see below), whose sum is σ = 124149360384. Its totient is φ = 79679718144.

The previous prime is 100788832721. The next prime is 100788832789. The reversal of 100788832781 is 187238887001.

It is not a de Polignac number, because 100788832781 - 2³⁴ = 83608963597 is a prime.

It is a super-2 number, since 2×100788832781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100788832789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341516 + ... + 564101.

It is an arithmetic number, because the mean of its divisors is an integer number (7759335024).

Almost surely, 2^100788832781 is an apocalyptic number.

It is an amenable number.

100788832781 is a deficient number, since it is larger than the sum of its proper divisors (23360527603).

100788832781 is a wasteful number, since it uses less digits than its factorization.

100788832781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906860.

The product of its (nonzero) digits is 1204224, while the sum is 53.

The spelling of 100788832781 in words is "one hundred billion, seven hundred eighty-eight million, eight hundred thirty-two thousand, seven hundred eighty-one".