1868517038 has 32 divisors (see below), whose sum is σ = 3097699200. Its totient is φ = 841778784.

The previous prime is 1868517031. The next prime is 1868517043. The reversal of 1868517038 is 8307158681.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1868516983 and 1868517001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868517031) 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, 61181 + ... + 86487.

It is an arithmetic number, because the mean of its divisors is an integer number (96803100).

Almost surely, 2^1868517038 is an apocalyptic number.

1868517038 is a deficient number, since it is larger than the sum of its proper divisors (1229182162).

1868517038 is a wasteful number, since it uses less digits than its factorization.

1868517038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25424.

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 1868517038 is about 43226.3465724320. The cubic root of 1868517038 is about 1231.6832085743.

The spelling of 1868517038 in words is "one billion, eight hundred sixty-eight million, five hundred seventeen thousand, thirty-eight".