779220142044031 has 4 divisors (see below), whose sum is σ = 779220203994112. Its totient is φ = 779220080093952.

The previous prime is 779220142043953. The next prime is 779220142044037. The reversal of 779220142044031 is 130440241022977.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 779220142044031 - 2⁴⁵ = 744035769955199 is a prime.

It is a super-2 number, since 2×779220142044031² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779220142044037) 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, 4650111 + ... + 39750016.

It is an arithmetic number, because the mean of its divisors is an integer number (194805050998528).

Almost surely, 2^{779220142044031} is an apocalyptic number.

779220142044031 is a deficient number, since it is larger than the sum of its proper divisors (61950081).

779220142044031 is a wasteful number, since it uses less digits than its factorization.

779220142044031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61950080.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 779220142044031 in words is "seven hundred seventy-nine trillion, two hundred twenty billion, one hundred forty-two million, forty-four thousand, thirty-one".