1868699907 has 12 divisors (see below), whose sum is σ = 2737251504. Its totient is φ = 1228253040.

The previous prime is 1868699897. The next prime is 1868699923. The reversal of 1868699907 is 7099968681.

It is not a de Polignac number, because 1868699907 - 2⁷ = 1868699779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1868691907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1461568 + ... + 1462845.

It is an arithmetic number, because the mean of its divisors is an integer number (228104292).

Almost surely, 2^1868699907 is an apocalyptic number.

1868699907 is a deficient number, since it is larger than the sum of its proper divisors (868551597).

1868699907 is a wasteful number, since it uses less digits than its factorization.

1868699907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924490 (or 2924487 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The square root of 1868699907 is about 43228.4617699959. The cubic root of 1868699907 is about 1231.7233882684.

The spelling of 1868699907 in words is "one billion, eight hundred sixty-eight million, six hundred ninety-nine thousand, nine hundred seven".