4379539644 has 48 divisors (see below), whose sum is σ = 11454875040. Its totient is φ = 1446923520.

The previous prime is 4379539613. The next prime is 4379539721. The reversal of 4379539644 is 4469359734.

It is a happy number.

4379539644 is a `hidden beast` number, since 43 + 7 + 9 + 539 + 64 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 167227 + ... + 191634.

It is an arithmetic number, because the mean of its divisors is an integer number (238643230).

Almost surely, 2^4379539644 is an apocalyptic number.

It is an amenable number.

4379539644 is an abundant number, since it is smaller than the sum of its proper divisors (7075335396).

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

4379539644 is a wasteful number, since it uses less digits than its factorization.

4379539644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358987 (or 358979 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The square root of 4379539644 is about 66178.0903622944. The cubic root of 4379539644 is about 1636.0986538907.

The spelling of 4379539644 in words is "four billion, three hundred seventy-nine million, five hundred thirty-nine thousand, six hundred forty-four".