865655468470 has 128 divisors (see below), whose sum is σ = 1871567026560. Its totient is φ = 284793200640.

The previous prime is 865655468467. The next prime is 865655468477. The reversal of 865655468470 is 74864556568.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865655468477) 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 63 ways as a sum of consecutive naturals, for example, 67723480 + ... + 67736260.

It is an arithmetic number, because the mean of its divisors is an integer number (14621617395).

Almost surely, 2^865655468470 is an apocalyptic number.

865655468470 is an abundant number, since it is smaller than the sum of its proper divisors (1005911558090).

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

865655468470 is a wasteful number, since it uses less digits than its factorization.

865655468470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14450.

The product of its (nonzero) digits is 193536000, while the sum is 64.

The spelling of 865655468470 in words is "eight hundred sixty-five billion, six hundred fifty-five million, four hundred sixty-eight thousand, four hundred seventy".