11922791040 has 96 divisors (see below), whose sum is σ = 41170907700. Its totient is φ = 3179409408.

The previous prime is 11922791039. The next prime is 11922791047. The reversal of 11922791040 is 4019722911.

It can be written as a sum of positive squares in 2 ways, for example, as 11856596544 + 66194496 = 108888^2 + 8136^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×11922791040³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11922790986 and 11922791004.

It is not an unprimeable number, because it can be changed into a prime (11922791047) 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, 1029205 + ... + 1040724.

Almost surely, 2^11922791040 is an apocalyptic number.

11922791040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11922791040 is an abundant number, since it is smaller than the sum of its proper divisors (29248116660).

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

11922791040 is a wasteful number, since it uses less digits than its factorization.

11922791040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069954 (or 2069939 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 11922791040 in words is "eleven billion, nine hundred twenty-two million, seven hundred ninety-one thousand, forty".