44721247928 has 64 divisors (see below), whose sum is σ = 97845269760. Its totient is φ = 18767540736.

The previous prime is 44721247843. The next prime is 44721247937. The reversal of 44721247928 is 82974212744.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 482651 + ... + 567797.

It is an arithmetic number, because the mean of its divisors is an integer number (1528832340).

Almost surely, 2^44721247928 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 44721247928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48922634880).

44721247928 is an abundant number, since it is smaller than the sum of its proper divisors (53124021832).

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

44721247928 is a wasteful number, since it uses less digits than its factorization.

44721247928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85356 (or 85352 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The spelling of 44721247928 in words is "forty-four billion, seven hundred twenty-one million, two hundred forty-seven thousand, nine hundred twenty-eight".