44661578572 has 48 divisors (see below), whose sum is σ = 89318234880. Its totient is φ = 19382603328.

The previous prime is 44661578569. The next prime is 44661578597. The reversal of 44661578572 is 27587516644.

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, 245898 + ... + 387025.

It is an arithmetic number, because the mean of its divisors is an integer number (1860796560).

Almost surely, 2^44661578572 is an apocalyptic number.

It is an amenable number.

44661578572 is a deficient number, since it is larger than the sum of its proper divisors (44656656308).

44661578572 is a wasteful number, since it uses less digits than its factorization.

44661578572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633022 (or 633020 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 55.

The spelling of 44661578572 in words is "forty-four billion, six hundred sixty-one million, five hundred seventy-eight thousand, five hundred seventy-two".