2386641855391 has 2 divisors, whose sum is σ = 2386641855392. Its totient is φ = 2386641855390.

The previous prime is 2386641855361. The next prime is 2386641855397. The reversal of 2386641855391 is 1935581466832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2386641855391 - 2²⁵ = 2386608300959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2386641855397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1193320927695 + 1193320927696.

It is an arithmetic number, because the mean of its divisors is an integer number (1193320927696).

Almost surely, 2^{2386641855391} is an apocalyptic number.

2386641855391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2386641855391 is an equidigital number, since it uses as much as digits as its factorization.

2386641855391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37324800, while the sum is 61.

The spelling of 2386641855391 in words is "two trillion, three hundred eighty-six billion, six hundred forty-one million, eight hundred fifty-five thousand, three hundred ninety-one".