20830768764 has 48 divisors (see below), whose sum is σ = 52646617632. Its totient is φ = 6372410112.

The previous prime is 20830768757. The next prime is 20830768811. The reversal of 20830768764 is 46786703802.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358939 + ... + 412914.

It is an arithmetic number, because the mean of its divisors is an integer number (1096804534).

Almost surely, 2^20830768764 is an apocalyptic number.

It is an amenable number.

20830768764 is an abundant number, since it is smaller than the sum of its proper divisors (31815848868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20830768764 is a wasteful number, since it uses less digits than its factorization.

20830768764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772046 (or 772044 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 20830768764 in words is "twenty billion, eight hundred thirty million, seven hundred sixty-eight thousand, seven hundred sixty-four".