79454719065599 has 16 divisors (see below), whose sum is σ = 82287069173760. Its totient is φ = 76639551317280.

The previous prime is 79454719065529. The next prime is 79454719065629. The reversal of 79454719065599 is 99556091745497.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-79454719065599 is a prime.

It is a super-2 number, since 2×79454719065599² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79454719065529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10640192 + ... + 16496154.

It is an arithmetic number, because the mean of its divisors is an integer number (5142941823360).

Almost surely, 2^{79454719065599} is an apocalyptic number.

79454719065599 is a deficient number, since it is larger than the sum of its proper divisors (2832350108161).

79454719065599 is a wasteful number, since it uses less digits than its factorization.

79454719065599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857430.

The product of its (nonzero) digits is 3857868000, while the sum is 80.

The spelling of 79454719065599 in words is "seventy-nine trillion, four hundred fifty-four billion, seven hundred nineteen million, sixty-five thousand, five hundred ninety-nine".