12440085547644 has 48 divisors (see below), whose sum is σ = 32267707799040. Its totient is φ = 4144685076720.

The previous prime is 12440085547639. The next prime is 12440085547697. The reversal of 12440085547644 is 44674558004421.

12440085547644 is a `hidden beast` number, since 1 + 2 + 4 + 40 + 0 + 8 + 554 + 7 + 6 + 44 = 666.

12440085547644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12440085547644² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27694302 + ... + 28139909.

It is an arithmetic number, because the mean of its divisors is an integer number (672243912480).

Almost surely, 2^{12440085547644} is an apocalyptic number.

It is an amenable number.

12440085547644 is an abundant number, since it is smaller than the sum of its proper divisors (19827622251396).

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

12440085547644 is a wasteful number, since it uses less digits than its factorization.

12440085547644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55836287 (or 55836279 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 54.

The spelling of 12440085547644 in words is "twelve trillion, four hundred forty billion, eighty-five million, five hundred forty-seven thousand, six hundred forty-four".