10989686064 has 40 divisors (see below), whose sum is σ = 32445740800. Its totient is φ = 3139910208.

The previous prime is 10989686053. The next prime is 10989686077. The reversal of 10989686064 is 46068698901.

It is a junction number, because it is equal to n+sod(n) for n = 10989685995 and 10989686013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16353364 + ... + 16354035.

It is an arithmetic number, because the mean of its divisors is an integer number (811143520).

Almost surely, 2^10989686064 is an apocalyptic number.

10989686064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10989686064 is an abundant number, since it is smaller than the sum of its proper divisors (21456054736).

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

10989686064 is a wasteful number, since it uses less digits than its factorization.

10989686064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32707417 (or 32707411 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 10989686064 in words is "ten billion, nine hundred eighty-nine million, six hundred eighty-six thousand, sixty-four".