1304377685544 has 32 divisors (see below), whose sum is σ = 3261217335840. Its totient is φ = 434756145600.

The previous prime is 1304377685543. The next prime is 1304377685551. The reversal of 1304377685544 is 4455867734031.

It is a super-2 number, since 2×1304377685544² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1304377685543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1982727 + ... + 2557334.

It is an arithmetic number, because the mean of its divisors is an integer number (101913041745).

Almost surely, 2^{1304377685544} is an apocalyptic number.

It is an amenable number.

1304377685544 is an abundant number, since it is smaller than the sum of its proper divisors (1956839650296).

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

1304377685544 is a wasteful number, since it uses less digits than its factorization.

1304377685544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552041 (or 4552037 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 57.

The spelling of 1304377685544 in words is "one trillion, three hundred four billion, three hundred seventy-seven million, six hundred eighty-five thousand, five hundred forty-four".