3618137493 has 24 divisors (see below), whose sum is σ = 5306648256. Its totient is φ = 2375049600.

The previous prime is 3618137477. The next prime is 3618137543. The reversal of 3618137493 is 3947318163.

It is not a de Polignac number, because 3618137493 - 2⁴ = 3618137477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618137473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 559746 + ... + 566172.

It is an arithmetic number, because the mean of its divisors is an integer number (221110344).

Almost surely, 2^3618137493 is an apocalyptic number.

It is an amenable number.

3618137493 is a deficient number, since it is larger than the sum of its proper divisors (1688510763).

3618137493 is a wasteful number, since it uses less digits than its factorization.

3618137493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385 (or 7382 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 3618137493 is about 60150.9558776916. The cubic root of 3618137493 is about 1535.1884305740.

The spelling of 3618137493 in words is "three billion, six hundred eighteen million, one hundred thirty-seven thousand, four hundred ninety-three".