2456378291 has 2 divisors, whose sum is σ = 2456378292. Its totient is φ = 2456378290.

The previous prime is 2456378261. The next prime is 2456378303. The reversal of 2456378291 is 1928736542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2456378291 - 2¹⁸ = 2456116147 is a prime.

It is not a weakly prime, because it can be changed into another prime (2456378251) 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, 1228189145 + 1228189146.

It is an arithmetic number, because the mean of its divisors is an integer number (1228189146).

Almost surely, 2^2456378291 is an apocalyptic number.

2456378291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2456378291 is an equidigital number, since it uses as much as digits as its factorization.

2456378291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 2456378291 is about 49561.8632720764. The cubic root of 2456378291 is about 1349.2686099532.

The spelling of 2456378291 in words is "two billion, four hundred fifty-six million, three hundred seventy-eight thousand, two hundred ninety-one".