44538660000 has 600 divisors, whose sum is σ = 172415184480. Its totient is φ = 11244096000.

The previous prime is 44538659999. The next prime is 44538660007. The reversal of 44538660000 is 6683544.

44538660000 is a `hidden beast` number, since 4 + 45 + 3 + 8 + 6 + 600 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (600).

It is a hoax number, since the sum of its digits (36) 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 (36).

It is not an unprimeable number, because it can be changed into a prime (44538660007) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 30779277 + ... + 30780723.

Almost surely, 2^44538660000 is an apocalyptic number.

44538660000 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 44538660000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86207592240).

44538660000 is an abundant number, since it is smaller than the sum of its proper divisors (127876524480).

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

44538660000 is a wasteful number, since it uses less digits than its factorization.

44538660000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 44538660000 in words is "forty-four billion, five hundred thirty-eight million, six hundred sixty thousand".