15086388868 has 12 divisors (see below), whose sum is σ = 26578370700. Its totient is φ = 7492568672.

The previous prime is 15086388851. The next prime is 15086388869. The reversal of 15086388868 is 86888368051.

It can be written as a sum of positive squares in 2 ways, for example, as 2037439044 + 13048949824 = 45138^2 + 114232^2 .

It is not an unprimeable number, because it can be changed into a prime (15086388869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12655771 + ... + 12656962.

It is an arithmetic number, because the mean of its divisors is an integer number (2214864225).

Almost surely, 2^15086388868 is an apocalyptic number.

It is an amenable number.

15086388868 is a deficient number, since it is larger than the sum of its proper divisors (11491981832).

15086388868 is a wasteful number, since it uses less digits than its factorization.

15086388868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25312886 (or 25312884 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 61.

The spelling of 15086388868 in words is "fifteen billion, eighty-six million, three hundred eighty-eight thousand, eight hundred sixty-eight".