63145422499 has 2 divisors, whose sum is σ = 63145422500. Its totient is φ = 63145422498.

The previous prime is 63145422497. The next prime is 63145422511. The reversal of 63145422499 is 99422454136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63145422499 - 2¹ = 63145422497 is a prime.

Together with 63145422497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63145422497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31572711249 + 31572711250.

It is an arithmetic number, because the mean of its divisors is an integer number (31572711250).

Almost surely, 2^63145422499 is an apocalyptic number.

63145422499 is a deficient number, since it is larger than the sum of its proper divisors (1).

63145422499 is an equidigital number, since it uses as much as digits as its factorization.

63145422499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 49.

The spelling of 63145422499 in words is "sixty-three billion, one hundred forty-five million, four hundred twenty-two thousand, four hundred ninety-nine".