2131335577779 has 4 divisors (see below), whose sum is σ = 2841780770376. Its totient is φ = 1420890385184.

The previous prime is 2131335577747. The next prime is 2131335577807. The reversal of 2131335577779 is 9777755331312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131335577779 - 2⁵ = 2131335577747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131335570779) 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, 355222596294 + ... + 355222596299.

It is an arithmetic number, because the mean of its divisors is an integer number (710445192594).

Almost surely, 2^{2131335577779} is an apocalyptic number.

2131335577779 is a deficient number, since it is larger than the sum of its proper divisors (710445192597).

2131335577779 is an equidigital number, since it uses as much as digits as its factorization.

2131335577779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710445192596.

The product of its digits is 29172150, while the sum is 60.

The spelling of 2131335577779 in words is "two trillion, one hundred thirty-one billion, three hundred thirty-five million, five hundred seventy-seven thousand, seven hundred seventy-nine".