20814886380 has 48 divisors (see below), whose sum is σ = 60815672064. Its totient is φ = 5309304000.

The previous prime is 20814886369. The next prime is 20814886399. The reversal of 20814886380 is 8368841802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7540246 + ... + 7543005.

It is an arithmetic number, because the mean of its divisors is an integer number (1266993168).

Almost surely, 2^20814886380 is an apocalyptic number.

20814886380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20814886380 is an abundant number, since it is smaller than the sum of its proper divisors (40000785684).

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

20814886380 is a wasteful number, since it uses less digits than its factorization.

20814886380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083286 (or 15083284 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

It can be divided in two parts, 208148 and 86380, that added together give a triangular number (294528 = T₇₆₇).

The spelling of 20814886380 in words is "twenty billion, eight hundred fourteen million, eight hundred eighty-six thousand, three hundred eighty".