5865721398936 has 96 divisors (see below), whose sum is σ = 18156406638240. Its totient is φ = 1675864802304.

The previous prime is 5865721398931. The next prime is 5865721398947. The reversal of 5865721398936 is 6398931275685.

5865721398936 is a `hidden beast` number, since 5 + 8 + 6 + 572 + 13 + 9 + 8 + 9 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5865721398931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16433760 + ... + 16786896.

It is an arithmetic number, because the mean of its divisors is an integer number (189129235815).

Almost surely, 2^{5865721398936} is an apocalyptic number.

5865721398936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5865721398936 is an abundant number, since it is smaller than the sum of its proper divisors (12290685239304).

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

5865721398936 is a wasteful number, since it uses less digits than its factorization.

5865721398936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386113 (or 386106 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 72.

The spelling of 5865721398936 in words is "five trillion, eight hundred sixty-five billion, seven hundred twenty-one million, three hundred ninety-eight thousand, nine hundred thirty-six".