11946390400613 has 2 divisors, whose sum is σ = 11946390400614. Its totient is φ = 11946390400612.

The previous prime is 11946390400577. The next prime is 11946390400643. The reversal of 11946390400613 is 31600409364911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8035733859169 + 3910656541444 = 2834737^2 + 1977538^2 .

It is an emirp because it is prime and its reverse (31600409364911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11946390400613 - 2²² = 11946386206309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11946390400643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5973195200306 + 5973195200307.

It is an arithmetic number, because the mean of its divisors is an integer number (5973195200307).

Almost surely, 2^{11946390400613} is an apocalyptic number.

It is an amenable number.

11946390400613 is a deficient number, since it is larger than the sum of its proper divisors (1).

11946390400613 is an equidigital number, since it uses as much as digits as its factorization.

11946390400613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 11946390400613 in words is "eleven trillion, nine hundred forty-six billion, three hundred ninety million, four hundred thousand, six hundred thirteen".