20854354260 has 48 divisors (see below), whose sum is σ = 59349451392. Its totient is φ = 5469993600.

The previous prime is 20854354253. The next prime is 20854354361. The reversal of 20854354260 is 6245345802.

It is a congruent number.

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, 2845296 + ... + 2852615.

It is an arithmetic number, because the mean of its divisors is an integer number (1236446904).

Almost surely, 2^20854354260 is an apocalyptic number.

20854354260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20854354260 is an abundant number, since it is smaller than the sum of its proper divisors (38495097132).

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

20854354260 is a wasteful number, since it uses less digits than its factorization.

20854354260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5697984 (or 5697982 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 20854354260 in words is "twenty billion, eight hundred fifty-four million, three hundred fifty-four thousand, two hundred sixty".