104872761721 has 16 divisors (see below), whose sum is σ = 130892122368. Its totient is φ = 81807566400.

The previous prime is 104872761691. The next prime is 104872761733. The reversal of 104872761721 is 127167278401.

It is not a de Polignac number, because 104872761721 - 2⁵ = 104872761689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104872761781) 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, 8109370 + ... + 8122291.

It is an arithmetic number, because the mean of its divisors is an integer number (8180757648).

Almost surely, 2^104872761721 is an apocalyptic number.

It is an amenable number.

104872761721 is a deficient number, since it is larger than the sum of its proper divisors (26019360647).

104872761721 is a wasteful number, since it uses less digits than its factorization.

104872761721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16231752.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 104872761721 in words is "one hundred four billion, eight hundred seventy-two million, seven hundred sixty-one thousand, seven hundred twenty-one".