2378536591 has 2 divisors, whose sum is σ = 2378536592. Its totient is φ = 2378536590.

The previous prime is 2378536577. The next prime is 2378536621. The reversal of 2378536591 is 1956358732.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2378536591 - 2¹⁵ = 2378503823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2378536571) 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 as a sum of consecutive naturals, namely, 1189268295 + 1189268296.

It is an arithmetic number, because the mean of its divisors is an integer number (1189268296).

Almost surely, 2^2378536591 is an apocalyptic number.

2378536591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2378536591 is an equidigital number, since it uses as much as digits as its factorization.

2378536591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 49.

The square root of 2378536591 is about 48770.2428843655. The cubic root of 2378536591 is about 1334.8627447063.

The spelling of 2378536591 in words is "two billion, three hundred seventy-eight million, five hundred thirty-six thousand, five hundred ninety-one".