865012536404 has 12 divisors (see below), whose sum is σ = 1532010155424. Its totient is φ = 427295349144.

The previous prime is 865012536391. The next prime is 865012536461. The reversal of 865012536404 is 404635210568.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1302729392 + ... + 1302730055.

It is an arithmetic number, because the mean of its divisors is an integer number (127667512952).

Almost surely, 2^865012536404 is an apocalyptic number.

It is an amenable number.

865012536404 is a deficient number, since it is larger than the sum of its proper divisors (666997619020).

865012536404 is a wasteful number, since it uses less digits than its factorization.

865012536404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605459534 (or 2605459532 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 865012536404 in words is "eight hundred sixty-five billion, twelve million, five hundred thirty-six thousand, four hundred four".