245342454491 has 2 divisors, whose sum is σ = 245342454492. Its totient is φ = 245342454490.

The previous prime is 245342454463. The next prime is 245342454523. The reversal of 245342454491 is 194454243542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245342454491 - 2¹⁰ = 245342453467 is a prime.

It is not a weakly prime, because it can be changed into another prime (245342454391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122671227245 + 122671227246.

It is an arithmetic number, because the mean of its divisors is an integer number (122671227246).

Almost surely, 2^245342454491 is an apocalyptic number.

245342454491 is a deficient number, since it is larger than the sum of its proper divisors (1).

245342454491 is an equidigital number, since it uses as much as digits as its factorization.

245342454491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2764800, while the sum is 47.

The spelling of 245342454491 in words is "two hundred forty-five billion, three hundred forty-two million, four hundred fifty-four thousand, four hundred ninety-one".