121929274077079 has 8 divisors (see below), whose sum is σ = 143113896986528. Its totient is φ = 101686189963680.

The previous prime is 121929274077047. The next prime is 121929274077097. The reversal of 121929274077079 is 970770472929121.

It is a happy number.

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

It is not a de Polignac number, because 121929274077079 - 2⁵ = 121929274077047 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 (121929274077179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235384698732 + ... + 235384699249.

It is an arithmetic number, because the mean of its divisors is an integer number (17889237123316).

Almost surely, 2^{121929274077079} is an apocalyptic number.

121929274077079 is a deficient number, since it is larger than the sum of its proper divisors (21184622909449).

121929274077079 is an equidigital number, since it uses as much as digits as its factorization.

121929274077079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470769398025.

The product of its (nonzero) digits is 56010528, while the sum is 67.

The spelling of 121929274077079 in words is "one hundred twenty-one trillion, nine hundred twenty-nine billion, two hundred seventy-four million, seventy-seven thousand, seventy-nine".