1444496813640 has 96 divisors (see below), whose sum is σ = 4695129316800. Its totient is φ = 385156920960.

The previous prime is 1444496813629. The next prime is 1444496813671. The reversal of 1444496813640 is 463186944441.

1444496813640 is a `hidden beast` number, since 1 + 4 + 4 + 4 + 496 + 81 + 36 + 40 = 666.

It is a super-2 number, since 2×1444496813640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3139555 + ... + 3570125.

It is an arithmetic number, because the mean of its divisors is an integer number (48907597050).

Almost surely, 2^{1444496813640} is an apocalyptic number.

1444496813640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444496813640 is an abundant number, since it is smaller than the sum of its proper divisors (3250632503160).

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

1444496813640 is a wasteful number, since it uses less digits than its factorization.

1444496813640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439907 (or 439900 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 1444496813640 in words is "one trillion, four hundred forty-four billion, four hundred ninety-six million, eight hundred thirteen thousand, six hundred forty".