1868138596 has 48 divisors (see below), whose sum is σ = 3570336000. Its totient is φ = 852284160.

The previous prime is 1868138593. The next prime is 1868138627. The reversal of 1868138596 is 6958318681.

It is not an unprimeable number, because it can be changed into a prime (1868138593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242370 + ... + 249958.

It is an arithmetic number, because the mean of its divisors is an integer number (74382000).

Almost surely, 2^1868138596 is an apocalyptic number.

It is an amenable number.

1868138596 is a deficient number, since it is larger than the sum of its proper divisors (1702197404).

1868138596 is a wasteful number, since it uses less digits than its factorization.

1868138596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732 (or 7730 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 55.

The square root of 1868138596 is about 43221.9689047133. The cubic root of 1868138596 is about 1231.6000495557.

The spelling of 1868138596 in words is "one billion, eight hundred sixty-eight million, one hundred thirty-eight thousand, five hundred ninety-six".