1868876493 has 32 divisors (see below), whose sum is σ = 2854172160. Its totient is φ = 1077236160.

The previous prime is 1868876491. The next prime is 1868876519. The reversal of 1868876493 is 3946788681.

It is not a de Polignac number, because 1868876493 - 2¹ = 1868876491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868876491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49546 + ... + 78692.

It is an arithmetic number, because the mean of its divisors is an integer number (89192880).

Almost surely, 2^1868876493 is an apocalyptic number.

It is an amenable number.

1868876493 is a deficient number, since it is larger than the sum of its proper divisors (985295667).

1868876493 is a wasteful number, since it uses less digits than its factorization.

1868876493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29257.

The product of its digits is 13934592, while the sum is 60.

The square root of 1868876493 is about 43230.5041955330. The cubic root of 1868876493 is about 1231.7621849838.

The spelling of 1868876493 in words is "one billion, eight hundred sixty-eight million, eight hundred seventy-six thousand, four hundred ninety-three".