1868368516 has 24 divisors (see below), whose sum is σ = 3771665856. Its totient is φ = 793244640.

The previous prime is 1868368457. The next prime is 1868368531. The reversal of 1868368516 is 6158638681.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308815 + ... + 314806.

It is an arithmetic number, because the mean of its divisors is an integer number (157152744).

Almost surely, 2^1868368516 is an apocalyptic number.

It is an amenable number.

1868368516 is an abundant number, since it is smaller than the sum of its proper divisors (1903297340).

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

1868368516 is a wasteful number, since it uses less digits than its factorization.

1868368516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623739 (or 623737 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 1868368516 is about 43224.6285814002. The cubic root of 1868368516 is about 1231.6505736206.

The spelling of 1868368516 in words is "one billion, eight hundred sixty-eight million, three hundred sixty-eight thousand, five hundred sixteen".