865330138460 has 24 divisors (see below), whose sum is σ = 1821937936896. Its totient is φ = 345228313280.

The previous prime is 865330138451. The next prime is 865330138469. The reversal of 865330138460 is 64831033568.

865330138460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (865330138451) and next prime (865330138469).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865330138469) 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, 56476031 + ... + 56491350.

It is an arithmetic number, because the mean of its divisors is an integer number (75914080704).

Almost surely, 2^865330138460 is an apocalyptic number.

It is an amenable number.

865330138460 is an abundant number, since it is smaller than the sum of its proper divisors (956607798436).

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

865330138460 is a wasteful number, since it uses less digits than its factorization.

865330138460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112967773 (or 112967771 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 865330138460 in words is "eight hundred sixty-five billion, three hundred thirty million, one hundred thirty-eight thousand, four hundred sixty".