11938921932 has 36 divisors (see below), whose sum is σ = 32405646840. Its totient is φ = 3411120384.

The previous prime is 11938921919. The next prime is 11938921937. The reversal of 11938921932 is 23912983911.

It is a super-2 number, since 2×11938921932² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11938921937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10151557 + ... + 10152732.

Almost surely, 2^11938921932 is an apocalyptic number.

11938921932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11938921932 is an abundant number, since it is smaller than the sum of its proper divisors (20466724908).

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

11938921932 is a wasteful number, since it uses less digits than its factorization.

11938921932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20304310 (or 20304301 counting only the distinct ones).

The product of its digits is 209952, while the sum is 48.

The spelling of 11938921932 in words is "eleven billion, nine hundred thirty-eight million, nine hundred twenty-one thousand, nine hundred thirty-two".