79598916619 has 2 divisors, whose sum is σ = 79598916620. Its totient is φ = 79598916618.

The previous prime is 79598916611. The next prime is 79598916737. The reversal of 79598916619 is 91661989597.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79598916619 - 2³ = 79598916611 is a prime.

It is a super-2 number, since 2×79598916619² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79598916611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39799458309 + 39799458310.

It is an arithmetic number, because the mean of its divisors is an integer number (39799458310).

Almost surely, 2^79598916619 is an apocalyptic number.

79598916619 is a deficient number, since it is larger than the sum of its proper divisors (1).

79598916619 is an equidigital number, since it uses as much as digits as its factorization.

79598916619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66134880, while the sum is 70.

The spelling of 79598916619 in words is "seventy-nine billion, five hundred ninety-eight million, nine hundred sixteen thousand, six hundred nineteen".