27644053380 has 48 divisors (see below), whose sum is σ = 80072435520. Its totient is φ = 7117548928.

The previous prime is 27644053357. The next prime is 27644053387. The reversal of 27644053380 is 8335044672.

It is not an unprimeable number, because it can be changed into a prime (27644053387) 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, 7941954 + ... + 7945433.

It is an arithmetic number, because the mean of its divisors is an integer number (1668175740).

Almost surely, 2^27644053380 is an apocalyptic number.

27644053380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27644053380 is an abundant number, since it is smaller than the sum of its proper divisors (52428382140).

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

27644053380 is a wasteful number, since it uses less digits than its factorization.

27644053380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15887428 (or 15887426 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 27644053380 in words is "twenty-seven billion, six hundred forty-four million, fifty-three thousand, three hundred eighty".