79016454374399 has 16 divisors (see below), whose sum is σ = 79208985563136. Its totient is φ = 78824157720000.

The previous prime is 79016454374323. The next prime is 79016454374437. The reversal of 79016454374399 is 99347345461097.

It is a happy number.

It is a Cunningham number, because it is equal to 8889120²-1.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79016454374399 is a prime.

It is a super-2 number, since 2×79016454374399² (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 (79016454374309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5484580454 + ... + 5484594860.

It is an arithmetic number, because the mean of its divisors is an integer number (4950561597696).

Almost surely, 2^{79016454374399} is an apocalyptic number.

79016454374399 is a deficient number, since it is larger than the sum of its proper divisors (192531188737).

79016454374399 is a wasteful number, since it uses less digits than its factorization.

79016454374399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21646.

The product of its (nonzero) digits is 617258880, while the sum is 71.

The spelling of 79016454374399 in words is "seventy-nine trillion, sixteen billion, four hundred fifty-four million, three hundred seventy-four thousand, three hundred ninety-nine".