44677785644 has 12 divisors (see below), whose sum is σ = 78187926600. Its totient is φ = 22338378048.

The previous prime is 44677785641. The next prime is 44677785673. The reversal of 44677785644 is 44658777644.

It is a super-2 number, since 2×44677785644² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44677785641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119972 + ... + 322100.

It is an arithmetic number, because the mean of its divisors is an integer number (6515660550).

Almost surely, 2^44677785644 is an apocalyptic number.

It is an amenable number.

44677785644 is a deficient number, since it is larger than the sum of its proper divisors (33510140956).

44677785644 is a wasteful number, since it uses less digits than its factorization.

44677785644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257392 (or 257390 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 62.

The spelling of 44677785644 in words is "forty-four billion, six hundred seventy-seven million, seven hundred eighty-five thousand, six hundred forty-four".