11938678375720 has 32 divisors (see below), whose sum is σ = 27788303118600. Its totient is φ = 4610799923968.

The previous prime is 11938678375703. The next prime is 11938678375801. The reversal of 11938678375720 is 2757387683911.

It can be written as a sum of positive squares in 4 ways, for example, as 11893931742564 + 44746633156 = 3448758^2 + 211534^2 .

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, 5145980899 + ... + 5145983218.

Almost surely, 2^{11938678375720} is an apocalyptic number.

11938678375720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11938678375720 is an abundant number, since it is smaller than the sum of its proper divisors (15849624742880).

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

11938678375720 is a wasteful number, since it uses less digits than its factorization.

11938678375720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10291964157 (or 10291964153 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 67.

The spelling of 11938678375720 in words is "eleven trillion, nine hundred thirty-eight billion, six hundred seventy-eight million, three hundred seventy-five thousand, seven hundred twenty".