27312452020 has 48 divisors (see below), whose sum is σ = 66887654400. Its totient is φ = 9364266912.

The previous prime is 27312451967. The next prime is 27312452077. The reversal of 27312452020 is 2025421372.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 27312452020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1983844 + ... + 1997563.

It is an arithmetic number, because the mean of its divisors is an integer number (1393492800).

Almost surely, 2^27312452020 is an apocalyptic number.

27312452020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27312452020 is an abundant number, since it is smaller than the sum of its proper divisors (39575202380).

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

27312452020 is a wasteful number, since it uses less digits than its factorization.

27312452020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981437 (or 3981421 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 27312452020 its reverse (2025421372), we get a palindrome (29337873392).

The spelling of 27312452020 in words is "twenty-seven billion, three hundred twelve million, four hundred fifty-two thousand, twenty".