868345932644 has 48 divisors (see below), whose sum is σ = 1532409540480. Its totient is φ = 430533895680.

The previous prime is 868345932547. The next prime is 868345932647. The reversal of 868345932644 is 446239543868.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (868345932647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269922524 + ... + 269925740.

It is an arithmetic number, because the mean of its divisors is an integer number (31925198760).

Almost surely, 2^868345932644 is an apocalyptic number.

It is an amenable number.

868345932644 is a deficient number, since it is larger than the sum of its proper divisors (664063607836).

868345932644 is a wasteful number, since it uses less digits than its factorization.

868345932644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548 (or 4546 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 62.

The spelling of 868345932644 in words is "eight hundred sixty-eight billion, three hundred forty-five million, nine hundred thirty-two thousand, six hundred forty-four".