1172316926940 has 24 divisors (see below), whose sum is σ = 3282487395600. Its totient is φ = 312617847168.

The previous prime is 1172316926917. The next prime is 1172316926941. The reversal of 1172316926940 is 496296132711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172316926941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9769307665 + ... + 9769307784.

It is an arithmetic number, because the mean of its divisors is an integer number (136770308150).

Almost surely, 2^{1172316926940} is an apocalyptic number.

1172316926940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172316926940 is an abundant number, since it is smaller than the sum of its proper divisors (2110170468660).

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

1172316926940 is a wasteful number, since it uses less digits than its factorization.

1172316926940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19538615461 (or 19538615459 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 1172316926940 in words is "one trillion, one hundred seventy-two billion, three hundred sixteen million, nine hundred twenty-six thousand, nine hundred forty".