20453807882540 has 48 divisors (see below), whose sum is σ = 43005933210240. Its totient is φ = 8171444244480.

The previous prime is 20453807882471. The next prime is 20453807882653. The reversal of 20453807882540 is 4528870835402.

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, 78022724 + ... + 78284436.

It is an arithmetic number, because the mean of its divisors is an integer number (895956941880).

Almost surely, 2^{20453807882540} is an apocalyptic number.

20453807882540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20453807882540 is an abundant number, since it is smaller than the sum of its proper divisors (22552125327700).

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

20453807882540 is a wasteful number, since it uses less digits than its factorization.

20453807882540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266522 (or 266520 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 56.

The spelling of 20453807882540 in words is "twenty trillion, four hundred fifty-three billion, eight hundred seven million, eight hundred eighty-two thousand, five hundred forty".