15117841085 has 32 divisors (see below), whose sum is σ = 18947554560. Its totient is φ = 11565292032.

The previous prime is 15117841043. The next prime is 15117841139. The reversal of 15117841085 is 58014871151.

It is a cyclic number.

It is not a de Polignac number, because 15117841085 - 2²² = 15113646781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15633272 + ... + 15634238.

It is an arithmetic number, because the mean of its divisors is an integer number (592111080).

Almost surely, 2^15117841085 is an apocalyptic number.

It is an amenable number.

15117841085 is a deficient number, since it is larger than the sum of its proper divisors (3829713475).

15117841085 is a wasteful number, since it uses less digits than its factorization.

15117841085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 44800, while the sum is 41.

The spelling of 15117841085 in words is "fifteen billion, one hundred seventeen million, eight hundred forty-one thousand, eighty-five".