79321536901 has 4 divisors (see below), whose sum is σ = 79332110752. Its totient is φ = 79310963052.

The previous prime is 79321536887. The next prime is 79321536907. The reversal of 79321536901 is 10963512397.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10963512397 = 97 ⋅113025901.

It is a cyclic number.

It is not a de Polignac number, because 79321536901 - 2²³ = 79313148293 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 (79321536907) 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, 5275665 + ... + 5290678.

It is an arithmetic number, because the mean of its divisors is an integer number (19833027688).

Almost surely, 2^79321536901 is an apocalyptic number.

It is an amenable number.

79321536901 is a deficient number, since it is larger than the sum of its proper divisors (10573851).

79321536901 is a wasteful number, since it uses less digits than its factorization.

79321536901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10573850.

The product of its (nonzero) digits is 306180, while the sum is 46.

It can be divided in two parts, 793215 and 36901, that added together give a triangular number (830116 = T₁₂₈₈).

The spelling of 79321536901 in words is "seventy-nine billion, three hundred twenty-one million, five hundred thirty-six thousand, nine hundred one".