27999570097444 has 81 divisors (see below), whose sum is σ = 56847028065051. Its totient is φ = 12056278679280.

The previous prime is 27999570097393. The next prime is 27999570097487. The reversal of 27999570097444 is 44479007599972.

The square root of 27999570097444 is 5291462.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2211824787 + ... + 2211837445.

Almost surely, 2^{27999570097444} is an apocalyptic number.

27999570097444 is the 5291462-nd square number.

It is an amenable number.

27999570097444 is an abundant number, since it is smaller than the sum of its proper divisors (28847457967607).

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

27999570097444 is an equidigital number, since it uses as much as digits as its factorization.

27999570097444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25382 (or 12691 counting only the distinct ones).

The product of its (nonzero) digits is 1440270720, while the sum is 76.

The spelling of 27999570097444 in words is "twenty-seven trillion, nine hundred ninety-nine billion, five hundred seventy million, ninety-seven thousand, four hundred forty-four".