44542981572 has 12 divisors (see below), whose sum is σ = 103933623696. Its totient is φ = 14847660520.

The previous prime is 44542981559. The next prime is 44542981577. The reversal of 44542981572 is 27518924544.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (44542981577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855957554 + ... + 1855957577.

It is an arithmetic number, because the mean of its divisors is an integer number (8661135308).

Almost surely, 2^44542981572 is an apocalyptic number.

It is an amenable number.

44542981572 is an abundant number, since it is smaller than the sum of its proper divisors (59390642124).

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

44542981572 is a wasteful number, since it uses less digits than its factorization.

44542981572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711915138 (or 3711915136 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 51.

The spelling of 44542981572 in words is "forty-four billion, five hundred forty-two million, nine hundred eighty-one thousand, five hundred seventy-two".