1868574513 has 16 divisors (see below), whose sum is σ = 2824297280. Its totient is φ = 1089370944.

The previous prime is 1868574497. The next prime is 1868574517. The reversal of 1868574513 is 3154758681.

It is not a de Polignac number, because 1868574513 - 2⁴ = 1868574497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1868574517) 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, 1260106 + ... + 1261587.

It is an arithmetic number, because the mean of its divisors is an integer number (176518580).

Almost surely, 2^1868574513 is an apocalyptic number.

1868574513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1868574513 is a deficient number, since it is larger than the sum of its proper divisors (955722767).

1868574513 is a wasteful number, since it uses less digits than its factorization.

1868574513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521728.

The product of its digits is 806400, while the sum is 48.

The square root of 1868574513 is about 43227.0113817738. The cubic root of 1868574513 is about 1231.6958371749.

The spelling of 1868574513 in words is "one billion, eight hundred sixty-eight million, five hundred seventy-four thousand, five hundred thirteen".