865450027464 has 32 divisors (see below), whose sum is σ = 2360318257440. Its totient is φ = 262257584000.

The previous prime is 865450027459. The next prime is 865450027469. The reversal of 865450027464 is 464720054568.

It is an interprime number because it is at equal distance from previous prime (865450027459) and next prime (865450027469).

It is not an unprimeable number, because it can be changed into a prime (865450027469) 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, 1639109637 + ... + 1639110164.

It is an arithmetic number, because the mean of its divisors is an integer number (73759945545).

Almost surely, 2^865450027464 is an apocalyptic number.

It is an amenable number.

865450027464 is an abundant number, since it is smaller than the sum of its proper divisors (1494868229976).

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

865450027464 is a wasteful number, since it uses less digits than its factorization.

865450027464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278219821 (or 3278219817 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 51.

The spelling of 865450027464 in words is "eight hundred sixty-five billion, four hundred fifty million, twenty-seven thousand, four hundred sixty-four".