44604691680 has 96 divisors (see below), whose sum is σ = 140605264800. Its totient is φ = 11886077952.

The previous prime is 44604691601. The next prime is 44604691687. The reversal of 44604691680 is 8619640644.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×44604691680² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44604691687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653406 + ... + 718434.

It is an arithmetic number, because the mean of its divisors is an integer number (1464638175).

Almost surely, 2^44604691680 is an apocalyptic number.

44604691680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44604691680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70302632400).

44604691680 is an abundant number, since it is smaller than the sum of its proper divisors (96000573120).

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

44604691680 is a wasteful number, since it uses less digits than its factorization.

44604691680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66476 (or 66468 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 44604691680 in words is "forty-four billion, six hundred four million, six hundred ninety-one thousand, six hundred eighty".