11946390400931 has 8 divisors (see below), whose sum is σ = 13653044186880. Its totient is φ = 10239743261448.

The previous prime is 11946390400837. The next prime is 11946390400993. The reversal of 11946390400931 is 13900409364911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11946390400931 - 2²⁶ = 11946323292067 is a prime.

It is a super-2 number, since 2×11946390400931² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11946390400931.

It is not an unprimeable number, because it can be changed into a prime (11946390400031) 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, 3099440 + ... + 5787858.

It is an arithmetic number, because the mean of its divisors is an integer number (1706630523360).

Almost surely, 2^{11946390400931} is an apocalyptic number.

11946390400931 is a deficient number, since it is larger than the sum of its proper divisors (1706653785949).

11946390400931 is an equidigital number, since it uses as much as digits as its factorization.

11946390400931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323233.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 11946390400931 in words is "eleven trillion, nine hundred forty-six billion, three hundred ninety million, four hundred thousand, nine hundred thirty-one".