14938906815 has 64 divisors (see below), whose sum is σ = 30370867200. Its totient is φ = 6824984832.

The previous prime is 14938906799. The next prime is 14938906823. The reversal of 14938906815 is 51860983941.

14938906815 is a `hidden beast` number, since 1 + 493 + 8 + 90 + 68 + 1 + 5 = 666.

It is not a de Polignac number, because 14938906815 - 2⁴ = 14938906799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1922979 + ... + 1930731.

It is an arithmetic number, because the mean of its divisors is an integer number (474544800).

Almost surely, 2^14938906815 is an apocalyptic number.

14938906815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

14938906815 is an abundant number, since it is smaller than the sum of its proper divisors (15431960385).

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

14938906815 is a wasteful number, since it uses less digits than its factorization.

14938906815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9813 (or 9807 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 14938906815 in words is "fourteen billion, nine hundred thirty-eight million, nine hundred six thousand, eight hundred fifteen".