104127781018 has 32 divisors (see below), whose sum is σ = 162357907968. Its totient is φ = 50032382400.

The previous prime is 104127781001. The next prime is 104127781027. The reversal of 104127781018 is 810187721401.

104127781018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×104127781018² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26581596 + ... + 26585512.

It is an arithmetic number, because the mean of its divisors is an integer number (5073684624).

Almost surely, 2^104127781018 is an apocalyptic number.

104127781018 is a deficient number, since it is larger than the sum of its proper divisors (58230126950).

104127781018 is a wasteful number, since it uses less digits than its factorization.

104127781018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838.

The product of its (nonzero) digits is 25088, while the sum is 40.

The spelling of 104127781018 in words is "one hundred four billion, one hundred twenty-seven million, seven hundred eighty-one thousand, eighteen".