868107642 has 8 divisors (see below), whose sum is σ = 1736215296. Its totient is φ = 289369212.

The previous prime is 868107641. The next prime is 868107649. The reversal of 868107642 is 246701868.

It is a sphenic number, since it is the product of 3 distinct primes.

868107642 is an admirable number.

It is a super-2 number, since 2×868107642² = 1507221756197600328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 868107594 and 868107603.

It is not an unprimeable number, because it can be changed into a prime (868107641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72342298 + ... + 72342309.

It is an arithmetic number, because the mean of its divisors is an integer number (217026912).

Almost surely, 2^868107642 is an apocalyptic number.

868107642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

868107642 is a wasteful number, since it uses less digits than its factorization.

868107642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144684612.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 868107642 is about 29463.6664724538. Note that the first 3 decimals coincide. The cubic root of 868107642 is about 953.9476147898.

The spelling of 868107642 in words is "eight hundred sixty-eight million, one hundred seven thousand, six hundred forty-two".