18906104336 has 60 divisors (see below), whose sum is σ = 43650448380. Its totient is φ = 7904977920.

The previous prime is 18906104303. The next prime is 18906104401. The reversal of 18906104336 is 63340160981.

It can be written as a sum of positive squares in 2 ways, for example, as 4591417600 + 14314686736 = 67760^2 + 119644^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 18906104293 and 18906104302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261941 + ... + 326228.

It is an arithmetic number, because the mean of its divisors is an integer number (727507473).

Almost surely, 2^18906104336 is an apocalyptic number.

18906104336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18906104336 is an abundant number, since it is smaller than the sum of its proper divisors (24744344044).

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

18906104336 is a wasteful number, since it uses less digits than its factorization.

18906104336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588232 (or 588219 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 18906104336 in words is "eighteen billion, nine hundred six million, one hundred four thousand, three hundred thirty-six".