79753078020705 has 64 divisors (see below), whose sum is σ = 137768936693760. Its totient is φ = 39275691307776.

The previous prime is 79753078020701. The next prime is 79753078020739. The reversal of 79753078020705 is 50702087035797.

It is a happy number.

It is not a de Polignac number, because 79753078020705 - 2² = 79753078020701 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79753078020701) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55792434 + ... + 57204036.

It is an arithmetic number, because the mean of its divisors is an integer number (2152639635840).

Almost surely, 2^{79753078020705} is an apocalyptic number.

It is an amenable number.

79753078020705 is a deficient number, since it is larger than the sum of its proper divisors (58015858673055).

79753078020705 is a wasteful number, since it uses less digits than its factorization.

79753078020705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417310.

The product of its (nonzero) digits is 25930800, while the sum is 60.

The spelling of 79753078020705 in words is "seventy-nine trillion, seven hundred fifty-three billion, seventy-eight million, twenty thousand, seven hundred five".