79293642619 has 2 divisors, whose sum is σ = 79293642620. Its totient is φ = 79293642618.

The previous prime is 79293642583. The next prime is 79293642661. The reversal of 79293642619 is 91624639297.

It is a weak prime.

It is an emirp because it is prime and its reverse (91624639297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79293642619 - 2²⁷ = 79159424891 is a prime.

It is a super-2 number, since 2×79293642619² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79293642119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39646821309 + 39646821310.

It is an arithmetic number, because the mean of its divisors is an integer number (39646821310).

Almost surely, 2^79293642619 is an apocalyptic number.

79293642619 is a deficient number, since it is larger than the sum of its proper divisors (1).

79293642619 is an equidigital number, since it uses as much as digits as its factorization.

79293642619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 58.

The spelling of 79293642619 in words is "seventy-nine billion, two hundred ninety-three million, six hundred forty-two thousand, six hundred nineteen".