1246401308263 has 2 divisors, whose sum is σ = 1246401308264. Its totient is φ = 1246401308262.

The previous prime is 1246401308261. The next prime is 1246401308297. The reversal of 1246401308263 is 3628031046421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1246401308263 - 2¹ = 1246401308261 is a prime.

Together with 1246401308261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1246401308261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623200654131 + 623200654132.

It is an arithmetic number, because the mean of its divisors is an integer number (623200654132).

Almost surely, 2^{1246401308263} is an apocalyptic number.

1246401308263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246401308263 is an equidigital number, since it uses as much as digits as its factorization.

1246401308263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 1246401308263 in words is "one trillion, two hundred forty-six billion, four hundred one million, three hundred eight thousand, two hundred sixty-three".