29978413794613 has 2 divisors, whose sum is σ = 29978413794614. Its totient is φ = 29978413794612.

The previous prime is 29978413794583. The next prime is 29978413794713. The reversal of 29978413794613 is 31649731487992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28135789445124 + 1842624349489 = 5304318^2 + 1357433^2 .

It is a cyclic number.

It is not a de Polignac number, because 29978413794613 - 2²¹ = 29978411697461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29978413794113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14989206897306 + 14989206897307.

It is an arithmetic number, because the mean of its divisors is an integer number (14989206897307).

Almost surely, 2^{29978413794613} is an apocalyptic number.

It is an amenable number.

29978413794613 is a deficient number, since it is larger than the sum of its proper divisors (1).

29978413794613 is an equidigital number, since it uses as much as digits as its factorization.

29978413794613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493807104, while the sum is 73.

The spelling of 29978413794613 in words is "twenty-nine trillion, nine hundred seventy-eight billion, four hundred thirteen million, seven hundred ninety-four thousand, six hundred thirteen".