44435680611021 has 24 divisors (see below), whose sum is σ = 77214883603520. Its totient is φ = 24055406044416.

The previous prime is 44435680611019. The next prime is 44435680611067. The reversal of 44435680611021 is 12011608653444.

44435680611021 is a `hidden beast` number, since 4 + 4 + 4 + 3 + 5 + 6 + 8 + 0 + 611 + 0 + 21 = 666.

It is not a de Polignac number, because 44435680611021 - 2¹ = 44435680611019 is a prime.

It is a super-2 number, since 2×44435680611021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44435680611011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18561268900 + ... + 18561271293.

Almost surely, 2^{44435680611021} is an apocalyptic number.

It is an amenable number.

44435680611021 is a deficient number, since it is larger than the sum of its proper divisors (32779202992499).

44435680611021 is a wasteful number, since it uses less digits than its factorization.

44435680611021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37122540225 (or 37122540222 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 44435680611021 in words is "forty-four trillion, four hundred thirty-five billion, six hundred eighty million, six hundred eleven thousand, twenty-one".