264419627491 has 2 divisors, whose sum is σ = 264419627492. Its totient is φ = 264419627490.

The previous prime is 264419627453. The next prime is 264419627501. The reversal of 264419627491 is 194726914462.

264419627491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264419627491 - 2⁷ = 264419627363 is a prime.

It is not a weakly prime, because it can be changed into another prime (264419627411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132209813745 + 132209813746.

It is an arithmetic number, because the mean of its divisors is an integer number (132209813746).

Almost surely, 2^264419627491 is an apocalyptic number.

264419627491 is a deficient number, since it is larger than the sum of its proper divisors (1).

264419627491 is an equidigital number, since it uses as much as digits as its factorization.

264419627491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 55.

The spelling of 264419627491 in words is "two hundred sixty-four billion, four hundred nineteen million, six hundred twenty-seven thousand, four hundred ninety-one".