779901021211201 has 4 divisors (see below), whose sum is σ = 779902060717872. Its totient is φ = 779899981704532.

The previous prime is 779901021211181. The next prime is 779901021211379. The reversal of 779901021211201 is 102112120109977.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-779901021211201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (779901021214201) 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, 518627131 + ... + 520128736.

It is an arithmetic number, because the mean of its divisors is an integer number (194975515179468).

Almost surely, 2^{779901021211201} is an apocalyptic number.

It is an amenable number.

779901021211201 is a deficient number, since it is larger than the sum of its proper divisors (1039506671).

779901021211201 is a wasteful number, since it uses less digits than its factorization.

779901021211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039506670.

The product of its (nonzero) digits is 31752, while the sum is 43.

The spelling of 779901021211201 in words is "seven hundred seventy-nine trillion, nine hundred one billion, twenty-one million, two hundred eleven thousand, two hundred one".