39944074462544 has 80 divisors (see below), whose sum is σ = 89839663822080. Its totient is φ = 16850242805760.

The previous prime is 39944074462531. The next prime is 39944074462577. The reversal of 39944074462544 is 44526447044993.

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, 777392 + ... + 8971760.

It is an arithmetic number, because the mean of its divisors is an integer number (1122995797776).

Almost surely, 2^{39944074462544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39944074462544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44919831911040).

39944074462544 is an abundant number, since it is smaller than the sum of its proper divisors (49895589359536).

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

39944074462544 is a wasteful number, since it uses less digits than its factorization.

39944074462544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195068 (or 8195062 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 65.

The spelling of 39944074462544 in words is "thirty-nine trillion, nine hundred forty-four billion, seventy-four million, four hundred sixty-two thousand, five hundred forty-four".