79698628507 has 2 divisors, whose sum is σ = 79698628508. Its totient is φ = 79698628506.

The previous prime is 79698628441. The next prime is 79698628627. The reversal of 79698628507 is 70582689697.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79698628507 - 2⁷ = 79698628379 is a prime.

It is not a weakly prime, because it can be changed into another prime (79698628307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39849314253 + 39849314254.

It is an arithmetic number, because the mean of its divisors is an integer number (39849314254).

Almost surely, 2^79698628507 is an apocalyptic number.

79698628507 is a deficient number, since it is larger than the sum of its proper divisors (1).

79698628507 is an equidigital number, since it uses as much as digits as its factorization.

79698628507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 79698628507 in words is "seventy-nine billion, six hundred ninety-eight million, six hundred twenty-eight thousand, five hundred seven".