79988674747 has 2 divisors, whose sum is σ = 79988674748. Its totient is φ = 79988674746.

The previous prime is 79988674723. The next prime is 79988674751. The reversal of 79988674747 is 74747688997.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79988674747 is a prime.

It is not a weakly prime, because it can be changed into another prime (79988674757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39994337373 + 39994337374.

It is an arithmetic number, because the mean of its divisors is an integer number (39994337374).

Almost surely, 2^79988674747 is an apocalyptic number.

79988674747 is a deficient number, since it is larger than the sum of its proper divisors (1).

79988674747 is an equidigital number, since it uses as much as digits as its factorization.

79988674747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1194891264, while the sum is 76.

The spelling of 79988674747 in words is "seventy-nine billion, nine hundred eighty-eight million, six hundred seventy-four thousand, seven hundred forty-seven".