11938205944 has 24 divisors (see below), whose sum is σ = 26038689840. Its totient is φ = 5116373808.

The previous prime is 11938205899. The next prime is 11938205963. The reversal of 11938205944 is 44950283911.

It is a super-2 number, since 2×11938205944² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11938205894 and 11938205903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15226912 + ... + 15227695.

It is an arithmetic number, because the mean of its divisors is an integer number (1084945410).

Almost surely, 2^11938205944 is an apocalyptic number.

11938205944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11938205944 is an abundant number, since it is smaller than the sum of its proper divisors (14100483896).

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

11938205944 is a wasteful number, since it uses less digits than its factorization.

11938205944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30454627 (or 30454616 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 11938205944 in words is "eleven billion, nine hundred thirty-eight million, two hundred five thousand, nine hundred forty-four".