44640625976820 has 384 divisors, whose sum is σ = 142761278714880. Its totient is φ = 11721428683776.

The previous prime is 44640625976809. The next prime is 44640625976839. The reversal of 44640625976820 is 2867952604644.

It is a happy number.

44640625976820 is a `hidden beast` number, since 4 + 46 + 406 + 25 + 97 + 6 + 82 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1957309857 + ... + 1957332663.

It is an arithmetic number, because the mean of its divisors is an integer number (371774163320).

Almost surely, 2^{44640625976820} 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 44640625976820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71380639357440).

44640625976820 is an abundant number, since it is smaller than the sum of its proper divisors (98120652738060).

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

44640625976820 is a wasteful number, since it uses less digits than its factorization.

44640625976820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23523 (or 23503 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 63.

The spelling of 44640625976820 in words is "forty-four trillion, six hundred forty billion, six hundred twenty-five million, nine hundred seventy-six thousand, eight hundred twenty".