20827006764 has 24 divisors (see below), whose sum is σ = 48604195248. Its totient is φ = 6941214720.

The previous prime is 20827006751. The next prime is 20827006771. The reversal of 20827006764 is 46760072802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60897 + ... + 212984.

It is an arithmetic number, because the mean of its divisors is an integer number (2025174802).

Almost surely, 2^20827006764 is an apocalyptic number.

It is an amenable number.

20827006764 is an abundant number, since it is smaller than the sum of its proper divisors (27777188484).

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

20827006764 is a wasteful number, since it uses less digits than its factorization.

20827006764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280225 (or 280223 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 20827006764 in words is "twenty billion, eight hundred twenty-seven million, six thousand, seven hundred sixty-four".