868123458 has 24 divisors (see below), whose sum is σ = 1886528748. Its totient is φ = 288513792.

The previous prime is 868123447. The next prime is 868123481. The reversal of 868123458 is 854321868.

868123458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 660849849 + 207273609 = 25707^2 + 14397^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65491 + ... + 77622.

Almost surely, 2^868123458 is an apocalyptic number.

868123458 is an abundant number, since it is smaller than the sum of its proper divisors (1018405290).

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

868123458 is a wasteful number, since it uses less digits than its factorization.

868123458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143458 (or 143455 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 868123458 is about 29463.9348695995. The cubic root of 868123458 is about 953.9534080591.

The spelling of 868123458 in words is "eight hundred sixty-eight million, one hundred twenty-three thousand, four hundred fifty-eight".