27442819572 has 24 divisors (see below), whose sum is σ = 73180852416. Its totient is φ = 7840805568.

The previous prime is 27442819571. The next prime is 27442819609. The reversal of 27442819572 is 27591824472.

It is a happy number.

It is a super-2 number, since 2×27442819572² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27442819571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163350033 + ... + 163350200.

It is an arithmetic number, because the mean of its divisors is an integer number (3049202184).

Almost surely, 2^27442819572 is an apocalyptic number.

It is an amenable number.

27442819572 is an abundant number, since it is smaller than the sum of its proper divisors (45738032844).

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

27442819572 is a wasteful number, since it uses less digits than its factorization.

27442819572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326700247 (or 326700245 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The spelling of 27442819572 in words is "twenty-seven billion, four hundred forty-two million, eight hundred nineteen thousand, five hundred seventy-two".