10186913864 has 8 divisors (see below), whose sum is σ = 19100463510. Its totient is φ = 5093456928.

The previous prime is 10186913857. The next prime is 10186913881. The reversal of 10186913864 is 46831968101.

It can be written as a sum of positive squares in only one way, i.e., 6945888964 + 3241024900 = 83342^2 + 56930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636682109 + ... + 636682124.

Almost surely, 2^10186913864 is an apocalyptic number.

It is an amenable number.

10186913864 is a deficient number, since it is larger than the sum of its proper divisors (8913549646).

10186913864 is a wasteful number, since it uses less digits than its factorization.

10186913864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273364239 (or 1273364235 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 10186913864 in words is "ten billion, one hundred eighty-six million, nine hundred thirteen thousand, eight hundred sixty-four".