153869868 has 30 divisors (see below), whose sum is σ = 402247076. Its totient is φ = 51289848.

The previous prime is 153869827. The next prime is 153869879. The reversal of 153869868 is 868968351.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 237130 + ... + 237777.

Almost surely, 2^153869868 is an apocalyptic number.

153869868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

153869868 is an abundant number, since it is smaller than the sum of its proper divisors (248377208).

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

153869868 is a wasteful number, since it uses less digits than its factorization.

153869868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474923 (or 474912 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 153869868 is about 12404.4293701887. The cubic root of 153869868 is about 535.8598198429.

The spelling of 153869868 in words is "one hundred fifty-three million, eight hundred sixty-nine thousand, eight hundred sixty-eight".