79812654320715 has 16 divisors (see below), whose sum is σ = 127826308385568. Its totient is φ = 42524728480256.

The previous prime is 79812654320713. The next prime is 79812654320813. The reversal of 79812654320715 is 51702345621897.

It is a cyclic number.

It is not a de Polignac number, because 79812654320715 - 2¹ = 79812654320713 is a prime.

It is a super-2 number, since 2×79812654320715² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79812654320713) 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, 2626264974 + ... + 2626295363.

It is an arithmetic number, because the mean of its divisors is an integer number (7989144274098).

It is a 1-persistent number, because it is pandigital, but 2⋅79812654320715 = 159625308641430 is not.

Almost surely, 2^{79812654320715} is an apocalyptic number.

79812654320715 is a deficient number, since it is larger than the sum of its proper divisors (48013654064853).

79812654320715 is a wasteful number, since it uses less digits than its factorization.

79812654320715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252561358.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 79812654320715 in words is "seventy-nine trillion, eight hundred twelve billion, six hundred fifty-four million, three hundred twenty thousand, seven hundred fifteen".