2245680012491 has 2 divisors, whose sum is σ = 2245680012492. Its totient is φ = 2245680012490.

The previous prime is 2245680012463. The next prime is 2245680012547. The reversal of 2245680012491 is 1942100865422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2245680012491 - 2⁶ = 2245680012427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2245680012091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122840006245 + 1122840006246.

It is an arithmetic number, because the mean of its divisors is an integer number (1122840006246).

Almost surely, 2^{2245680012491} is an apocalyptic number.

2245680012491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245680012491 is an equidigital number, since it uses as much as digits as its factorization.

2245680012491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 2245680012491 in words is "two trillion, two hundred forty-five billion, six hundred eighty million, twelve thousand, four hundred ninety-one".