20137060779 has 48 divisors (see below), whose sum is σ = 31702440960. Its totient is φ = 11269373440.

The previous prime is 20137060771. The next prime is 20137060843. The reversal of 20137060779 is 97706073102.

It is not a de Polignac number, because 20137060779 - 2³ = 20137060771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20137060779.

It is not an unprimeable number, because it can be changed into a prime (20137060771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 485542 + ... + 525380.

It is an arithmetic number, because the mean of its divisors is an integer number (660467520).

Almost surely, 2^20137060779 is an apocalyptic number.

20137060779 is a deficient number, since it is larger than the sum of its proper divisors (11565380181).

20137060779 is a wasteful number, since it uses less digits than its factorization.

20137060779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39940 (or 39923 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 42.

The spelling of 20137060779 in words is "twenty billion, one hundred thirty-seven million, sixty thousand, seven hundred seventy-nine".