10989557579115 has 12 divisors (see below), whose sum is σ = 19048566470544. Its totient is φ = 5861097375504.

The previous prime is 10989557579087. The next prime is 10989557579123. The reversal of 10989557579115 is 51197575598901.

10989557579115 is a `hidden beast` number, since 1 + 0 + 9 + 8 + 9 + 557 + 57 + 9 + 1 + 15 = 666.

It is not a de Polignac number, because 10989557579115 - 2⁶ = 10989557579051 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122106195279 + ... + 122106195368.

It is an arithmetic number, because the mean of its divisors is an integer number (1587380539212).

Almost surely, 2^{10989557579115} is an apocalyptic number.

10989557579115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10989557579115 is a deficient number, since it is larger than the sum of its proper divisors (8059008891429).

10989557579115 is a wasteful number, since it uses less digits than its factorization.

10989557579115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244212390658 (or 244212390655 counting only the distinct ones).

The product of its (nonzero) digits is 178605000, while the sum is 72.

The spelling of 10989557579115 in words is "ten trillion, nine hundred eighty-nine billion, five hundred fifty-seven million, five hundred seventy-nine thousand, one hundred fifteen".