14889915081 has 6 divisors (see below), whose sum is σ = 21507655130. Its totient is φ = 9926610048.

The previous prime is 14889915043. The next prime is 14889915091. The reversal of 14889915081 is 18051998841.

14889915081 is a `hidden beast` number, since 1 + 48 + 8 + 9 + 91 + 508 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13529411856 + 1360503225 = 116316^2 + 36885^2 .

It is not a de Polignac number, because 14889915081 - 2⁶ = 14889915017 is a prime.

It is a super-2 number, since 2×14889915081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14889915031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 827217496 + ... + 827217513.

Almost surely, 2^14889915081 is an apocalyptic number.

It is an amenable number.

14889915081 is a deficient number, since it is larger than the sum of its proper divisors (6617740049).

14889915081 is a wasteful number, since it uses less digits than its factorization.

14889915081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654435015 (or 1654435012 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 54.

The spelling of 14889915081 in words is "fourteen billion, eight hundred eighty-nine million, nine hundred fifteen thousand, eighty-one".