2365138851 has 4 divisors (see below), whose sum is σ = 3153518472. Its totient is φ = 1576759232.

The previous prime is 2365138849. The next prime is 2365138859. The reversal of 2365138851 is 1588315632.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2365138851 - 2¹ = 2365138849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2365138859) 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 3 ways as a sum of consecutive naturals, for example, 394189806 + ... + 394189811.

It is an arithmetic number, because the mean of its divisors is an integer number (788379618).

Almost surely, 2^2365138851 is an apocalyptic number.

2365138851 is a deficient number, since it is larger than the sum of its proper divisors (788379621).

2365138851 is an equidigital number, since it uses as much as digits as its factorization.

2365138851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788379620.

The product of its digits is 172800, while the sum is 42.

The square root of 2365138851 is about 48632.6932320224. The cubic root of 2365138851 is about 1332.3517009271.

The spelling of 2365138851 in words is "two billion, three hundred sixty-five million, one hundred thirty-eight thousand, eight hundred fifty-one".