44021536643052 has 384 divisors, whose sum is σ = 118186580019200. Its totient is φ = 14164761600000.

The previous prime is 44021536643027. The next prime is 44021536643111. The reversal of 44021536643052 is 25034663512044.

44021536643052 is a `hidden beast` number, since 4 + 4 + 0 + 2 + 1 + 536 + 64 + 3 + 0 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 44021536642989 and 44021536643007.

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, 33324402552 + ... + 33324403872.

Almost surely, 2^{44021536643052} 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 44021536643052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59093290009600).

44021536643052 is an abundant number, since it is smaller than the sum of its proper divisors (74165043376148).

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

44021536643052 is a wasteful number, since it uses less digits than its factorization.

44021536643052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 44021536643052 in words is "forty-four trillion, twenty-one billion, five hundred thirty-six million, six hundred forty-three thousand, fifty-two".