79874182013 has 2 divisors, whose sum is σ = 79874182014. Its totient is φ = 79874182012.

The previous prime is 79874181979. The next prime is 79874182033. The reversal of 79874182013 is 31028147897.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47751864484 + 32122317529 = 218522^2 + 179227^2 .

It is an emirp because it is prime and its reverse (31028147897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79874182013 - 2¹² = 79874177917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79874182033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39937091006 + 39937091007.

It is an arithmetic number, because the mean of its divisors is an integer number (39937091007).

Almost surely, 2^79874182013 is an apocalyptic number.

It is an amenable number.

79874182013 is a deficient number, since it is larger than the sum of its proper divisors (1).

79874182013 is an equidigital number, since it uses as much as digits as its factorization.

79874182013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 79874182013 in words is "seventy-nine billion, eight hundred seventy-four million, one hundred eighty-two thousand, thirteen".