868151998 has 8 divisors (see below), whose sum is σ = 1488260592. Its totient is φ = 372065136.

The previous prime is 868151987. The next prime is 868152007. The reversal of 868151998 is 899151868.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31005415 + ... + 31005442.

It is an arithmetic number, because the mean of its divisors is an integer number (186032574).

Almost surely, 2^868151998 is an apocalyptic number.

868151998 is a deficient number, since it is larger than the sum of its proper divisors (620108594).

868151998 is a wasteful number, since it uses less digits than its factorization.

868151998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62010866.

The product of its digits is 1244160, while the sum is 55.

The square root of 868151998 is about 29464.4191865375. The cubic root of 868151998 is about 953.9638618456.

The spelling of 868151998 in words is "eight hundred sixty-eight million, one hundred fifty-one thousand, nine hundred ninety-eight".