79393147061251 has 4 divisors (see below), whose sum is σ = 80349691001832. Its totient is φ = 78436603120672.

The previous prime is 79393147061243. The next prime is 79393147061273. The reversal of 79393147061251 is 15216074139397.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79393147061251 - 2³ = 79393147061243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79393147061281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478271970166 + ... + 478271970331.

It is an arithmetic number, because the mean of its divisors is an integer number (20087422750458).

Almost surely, 2^{79393147061251} is an apocalyptic number.

79393147061251 is a deficient number, since it is larger than the sum of its proper divisors (956543940581).

79393147061251 is an equidigital number, since it uses as much as digits as its factorization.

79393147061251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956543940580.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 79393147061251 in words is "seventy-nine trillion, three hundred ninety-three billion, one hundred forty-seven million, sixty-one thousand, two hundred fifty-one".