27992895380 has 48 divisors (see below), whose sum is σ = 60971790096. Its totient is φ = 10786636800.

The previous prime is 27992895341. The next prime is 27992895389. The reversal of 27992895380 is 8359829972.

It can be written as a sum of positive squares in 8 ways, for example, as 9270993796 + 18721901584 = 96286^2 + 136828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27992895389) 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, 112529 + ... + 262008.

It is an arithmetic number, because the mean of its divisors is an integer number (1270245627).

Almost surely, 2^27992895380 is an apocalyptic number.

27992895380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27992895380 is an abundant number, since it is smaller than the sum of its proper divisors (32978894716).

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

27992895380 is a wasteful number, since it uses less digits than its factorization.

27992895380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374684 (or 374682 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 27992895380 in words is "twenty-seven billion, nine hundred ninety-two million, eight hundred ninety-five thousand, three hundred eighty".