20905127024892 has 48 divisors (see below), whose sum is σ = 53739912530304. Its totient is φ = 6272165320000.

The previous prime is 20905127024891. The next prime is 20905127024921. The reversal of 20905127024892 is 29842072150902.

It is a super-2 number, since 2×20905127024892² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20905127024891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784007334 + ... + 784033997.

It is an arithmetic number, because the mean of its divisors is an integer number (1119581511048).

Almost surely, 2^{20905127024892} is an apocalyptic number.

20905127024892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20905127024892 is an abundant number, since it is smaller than the sum of its proper divisors (32834785505412).

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

20905127024892 is a wasteful number, since it uses less digits than its factorization.

20905127024892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568041450 (or 1568041448 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 20905127024892 in words is "twenty trillion, nine hundred five billion, one hundred twenty-seven million, twenty-four thousand, eight hundred ninety-two".