20959974792460 has 48 divisors (see below), whose sum is σ = 48018337587360. Its totient is φ = 7621659683840.

The previous prime is 20959974792451. The next prime is 20959974792467. The reversal of 20959974792460 is 6429747995902.

It is not an unprimeable number, because it can be changed into a prime (20959974792467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10646676 + ... + 12460804.

It is an arithmetic number, because the mean of its divisors is an integer number (1000382033070).

Almost surely, 2^{20959974792460} is an apocalyptic number.

20959974792460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20959974792460 is an abundant number, since it is smaller than the sum of its proper divisors (27058362794900).

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

20959974792460 is a wasteful number, since it uses less digits than its factorization.

20959974792460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866666 (or 1866664 counting only the distinct ones).

The product of its (nonzero) digits is 617258880, while the sum is 73.

The spelling of 20959974792460 in words is "twenty trillion, nine hundred fifty-nine billion, nine hundred seventy-four million, seven hundred ninety-two thousand, four hundred sixty".