20481872931072 has 288 divisors, whose sum is σ = 70830945884160. Its totient is φ = 5715870935040.

The previous prime is 20481872931011. The next prime is 20481872931077. The reversal of 20481872931072 is 27013927818402.

20481872931072 is a `hidden beast` number, since 2 + 0 + 481 + 8 + 7 + 2 + 93 + 1 + 0 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (20481872931077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2841804 + ... + 7002827.

It is an arithmetic number, because the mean of its divisors is an integer number (245940784320).

Almost surely, 2^{20481872931072} is an apocalyptic number.

It is an amenable number.

20481872931072 is an abundant number, since it is smaller than the sum of its proper divisors (50349072953088).

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

20481872931072 is an equidigital number, since it uses as much as digits as its factorization.

20481872931072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9844706 (or 9844686 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 20481872931072 in words is "twenty trillion, four hundred eighty-one billion, eight hundred seventy-two million, nine hundred thirty-one thousand, seventy-two".