272379521920 has 128 divisors (see below), whose sum is σ = 710945100000. Its totient is φ = 98964602880.

The previous prime is 272379521881. The next prime is 272379521929. The reversal of 272379521920 is 29125973272.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×272379521920² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272379521929) 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, 8777472 + ... + 8808448.

Almost surely, 2^272379521920 is an apocalyptic number.

272379521920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272379521920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355472550000).

272379521920 is an abundant number, since it is smaller than the sum of its proper divisors (438565578080).

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

272379521920 is a wasteful number, since it uses less digits than its factorization.

272379521920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32256 (or 32244 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 272379521920 in words is "two hundred seventy-two billion, three hundred seventy-nine million, five hundred twenty-one thousand, nine hundred twenty".