860802595388640 has 144 divisors (see below), whose sum is σ = 2937617981298000. Its totient is φ = 229537268453376.

The previous prime is 860802595388623. The next prime is 860802595388653. The reversal of 860802595388640 is 46883595208068.

860802595388640 is a `hidden beast` number, since 8 + 6 + 0 + 8 + 0 + 2 + 5 + 9 + 538 + 86 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×860802595388640² (a number of 31 digits) contains 22 as substring.

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

It is a congruent number.

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, 19660311 + ... + 45914409.

It is an arithmetic number, because the mean of its divisors is an integer number (20400124870125).

Almost surely, 2^{860802595388640} is an apocalyptic number.

860802595388640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

860802595388640 is an abundant number, since it is smaller than the sum of its proper divisors (2076815385909360).

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

860802595388640 is a wasteful number, since it uses less digits than its factorization.

860802595388640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26276889 (or 26276878 counting only the distinct ones).

The product of its (nonzero) digits is 796262400, while the sum is 72.

The spelling of 860802595388640 in words is "eight hundred sixty trillion, eight hundred two billion, five hundred ninety-five million, three hundred eighty-eight thousand, six hundred forty".