79900201021 has 8 divisors (see below), whose sum is σ = 81998493824. Its totient is φ = 77827342320.

The previous prime is 79900200979. The next prime is 79900201027. The reversal of 79900201021 is 12010200997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79900201021 - 2¹⁵ = 79900168253 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 (79900201027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6352161 + ... + 6364726.

It is an arithmetic number, because the mean of its divisors is an integer number (10249811728).

Almost surely, 2^79900201021 is an apocalyptic number.

It is an amenable number.

79900201021 is a deficient number, since it is larger than the sum of its proper divisors (2098292803).

79900201021 is a wasteful number, since it uses less digits than its factorization.

79900201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12717051.

The product of its (nonzero) digits is 2268, while the sum is 31.

The spelling of 79900201021 in words is "seventy-nine billion, nine hundred million, two hundred one thousand, twenty-one".