44121636252 has 96 divisors (see below), whose sum is σ = 117705772800. Its totient is φ = 14284662336.

The previous prime is 44121636227. The next prime is 44121636271. The reversal of 44121636252 is 25263612144.

44121636252 is a `hidden beast` number, since 4 + 4 + 1 + 21 + 6 + 3 + 625 + 2 = 666.

It is a super-4 number, since 4×44121636252⁴ (a number of 44 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804738 + ... + 857814.

It is an arithmetic number, because the mean of its divisors is an integer number (1226101800).

Almost surely, 2^44121636252 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 44121636252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58852886400).

44121636252 is an abundant number, since it is smaller than the sum of its proper divisors (73584136548).

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

44121636252 is a wasteful number, since it uses less digits than its factorization.

44121636252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53312 (or 53304 counting only the distinct ones).

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

The spelling of 44121636252 in words is "forty-four billion, one hundred twenty-one million, six hundred thirty-six thousand, two hundred fifty-two".