79212021297 has 8 divisors (see below), whose sum is σ = 105631915680. Its totient is φ = 52800070560.

The previous prime is 79212021289. The next prime is 79212021299.

79212021297 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 79212021297 - 2³ = 79212021289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79212021299) 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, 1962604 + ... + 2002557.

It is an arithmetic number, because the mean of its divisors is an integer number (13203989460).

Almost surely, 2^79212021297 is an apocalyptic number.

It is an amenable number.

79212021297 is a deficient number, since it is larger than the sum of its proper divisors (26419894383).

79212021297 is a wasteful number, since it uses less digits than its factorization.

79212021297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971823.

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 79212021297 in words is "seventy-nine billion, two hundred twelve million, twenty-one thousand, two hundred ninety-seven".