79850730101 has 4 divisors (see below), whose sum is σ = 79853510604. Its totient is φ = 79847949600.

The previous prime is 79850730067. The next prime is 79850730163. The reversal of 79850730101 is 10103705897.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40864622500 + 38986107601 = 202150^2 + 197449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79850730101 is a prime.

It is a super-2 number, since 2×79850730101² (a number of 23 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 (79850733101) 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, 1346720 + ... + 1404761.

It is an arithmetic number, because the mean of its divisors is an integer number (19963377651).

Almost surely, 2^79850730101 is an apocalyptic number.

It is an amenable number.

79850730101 is a deficient number, since it is larger than the sum of its proper divisors (2780503).

79850730101 is a wasteful number, since it uses less digits than its factorization.

79850730101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780502.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 79850730101 in words is "seventy-nine billion, eight hundred fifty million, seven hundred thirty thousand, one hundred one".