27644331490 has 64 divisors (see below), whose sum is σ = 52749480960. Its totient is φ = 10412962560.

The previous prime is 27644331487. The next prime is 27644331497. The reversal of 27644331490 is 9413344672.

27644331490 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (27644331497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12356652 + ... + 12358888.

It is an arithmetic number, because the mean of its divisors is an integer number (824210640).

Almost surely, 2^27644331490 is an apocalyptic number.

27644331490 is a deficient number, since it is larger than the sum of its proper divisors (25105149470).

27644331490 is a wasteful number, since it uses less digits than its factorization.

27644331490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 27644331490 in words is "twenty-seven billion, six hundred forty-four million, three hundred thirty-one thousand, four hundred ninety".