104135686531400 has 24 divisors (see below), whose sum is σ = 242115471185970. Its totient is φ = 41654274612480.

The previous prime is 104135686531367. The next prime is 104135686531411. The reversal of 104135686531400 is 4135686531401.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 46214789037316 + 57920897494084 = 6798146^2 + 7610578^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260339216129 + ... + 260339216528.

Almost surely, 2^{104135686531400} is an apocalyptic number.

104135686531400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104135686531400 is an abundant number, since it is smaller than the sum of its proper divisors (137979784654570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104135686531400 is a wasteful number, since it uses less digits than its factorization.

104135686531400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520678432673 (or 520678432664 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

Subtracting from 104135686531400 its reverse (4135686531401), we obtain a palindrome (99999999999999).

The spelling of 104135686531400 in words is "one hundred four trillion, one hundred thirty-five billion, six hundred eighty-six million, five hundred thirty-one thousand, four hundred".