865768454436 has 48 divisors (see below), whose sum is σ = 2025949163840. Its totient is φ = 287758033920.

The previous prime is 865768454401. The next prime is 865768454449. The reversal of 865768454436 is 634454867568.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20722560 + ... + 20764296.

Almost surely, 2^865768454436 is an apocalyptic number.

It is an amenable number.

865768454436 is an abundant number, since it is smaller than the sum of its proper divisors (1160180709404).

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

865768454436 is a wasteful number, since it uses less digits than its factorization.

865768454436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46684 (or 46682 counting only the distinct ones).

The product of its digits is 464486400, while the sum is 66.

The spelling of 865768454436 in words is "eight hundred sixty-five billion, seven hundred sixty-eight million, four hundred fifty-four thousand, four hundred thirty-six".