11978900411939 has 16 divisors (see below), whose sum is σ = 12144265731360. Its totient is φ = 11814228222720.

The previous prime is 11978900411909. The next prime is 11978900411941. The reversal of 11978900411939 is 93911400987911.

It is a cyclic number.

It is not a de Polignac number, because 11978900411939 - 2³⁶ = 11910180935203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11978900411909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262747304 + ... + 262792890.

It is an arithmetic number, because the mean of its divisors is an integer number (759016608210).

Almost surely, 2^{11978900411939} is an apocalyptic number.

11978900411939 is a deficient number, since it is larger than the sum of its proper divisors (165365319421).

11978900411939 is an equidigital number, since it uses as much as digits as its factorization.

11978900411939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53110.

The product of its (nonzero) digits is 4408992, while the sum is 62.

The spelling of 11978900411939 in words is "eleven trillion, nine hundred seventy-eight billion, nine hundred million, four hundred eleven thousand, nine hundred thirty-nine".