868372281 has 24 divisors (see below), whose sum is σ = 1434348864. Its totient is φ = 495920160.

The previous prime is 868372261. The next prime is 868372283. The reversal of 868372281 is 182273868.

It is not a de Polignac number, because 868372281 - 2²⁵ = 834817849 is a prime.

It is a super-2 number, since 2×868372281² = 1508140836818285922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (868372283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149035 + ... + 154751.

It is an arithmetic number, because the mean of its divisors is an integer number (59764536).

Almost surely, 2^868372281 is an apocalyptic number.

It is an amenable number.

868372281 is a deficient number, since it is larger than the sum of its proper divisors (565976583).

868372281 is a wasteful number, since it uses less digits than its factorization.

868372281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8141 (or 8138 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 868372281 is about 29468.1570682661. The cubic root of 868372281 is about 954.0445405941.

The spelling of 868372281 in words is "eight hundred sixty-eight million, three hundred seventy-two thousand, two hundred eighty-one".