79435213157 has 4 divisors (see below), whose sum is σ = 79507231680. Its totient is φ = 79363194636.

The previous prime is 79435213141. The next prime is 79435213189. The reversal of 79435213157 is 75131253497.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79435213157 - 2⁴ = 79435213141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79435263157) 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, 36007607 + ... + 36009812.

It is an arithmetic number, because the mean of its divisors is an integer number (19876807920).

Almost surely, 2^79435213157 is an apocalyptic number.

It is an amenable number.

79435213157 is a deficient number, since it is larger than the sum of its proper divisors (72018523).

79435213157 is a wasteful number, since it uses less digits than its factorization.

79435213157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72018522.

The product of its digits is 793800, while the sum is 47.

The spelling of 79435213157 in words is "seventy-nine billion, four hundred thirty-five million, two hundred thirteen thousand, one hundred fifty-seven".