361682785872 has 80 divisors (see below), whose sum is σ = 1038557575680. Its totient is φ = 120515171328.

The previous prime is 361682785837. The next prime is 361682785879. The reversal of 361682785872 is 278587286163.

361682785872 is a `hidden beast` number, since 3 + 616 + 8 + 2 + 7 + 8 + 5 + 8 + 7 + 2 = 666.

It is a super-2 number, since 2×361682785872² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361682785879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990273 + ... + 1305375.

It is an arithmetic number, because the mean of its divisors is an integer number (12981969696).

Almost surely, 2^361682785872 is an apocalyptic number.

It is an amenable number.

361682785872 is an abundant number, since it is smaller than the sum of its proper divisors (676874789808).

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

361682785872 is a wasteful number, since it uses less digits than its factorization.

361682785872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317777 (or 317765 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 361682785872 in words is "three hundred sixty-one billion, six hundred eighty-two million, seven hundred eighty-five thousand, eight hundred seventy-two".