20761131892 has 24 divisors (see below), whose sum is σ = 37530581760. Its totient is φ = 10038583680.

The previous prime is 20761131863. The next prime is 20761131893. The reversal of 20761131892 is 29813116702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20761131893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118284 + ... + 235612.

It is an arithmetic number, because the mean of its divisors is an integer number (1563774240).

Almost surely, 2^20761131892 is an apocalyptic number.

It is an amenable number.

20761131892 is a deficient number, since it is larger than the sum of its proper divisors (16769449868).

20761131892 is a wasteful number, since it uses less digits than its factorization.

20761131892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118791 (or 118789 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 20761131892 in words is "twenty billion, seven hundred sixty-one million, one hundred thirty-one thousand, eight hundred ninety-two".