63157895399 has 2 divisors, whose sum is σ = 63157895400. Its totient is φ = 63157895398.

The previous prime is 63157895387. The next prime is 63157895431. The reversal of 63157895399 is 99359875136.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63157895399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63157895299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31578947699 + 31578947700.

It is an arithmetic number, because the mean of its divisors is an integer number (31578947700).

Almost surely, 2^63157895399 is an apocalyptic number.

63157895399 is a deficient number, since it is larger than the sum of its proper divisors (1).

63157895399 is an equidigital number, since it uses as much as digits as its factorization.

63157895399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55112400, while the sum is 65.

The spelling of 63157895399 in words is "sixty-three billion, one hundred fifty-seven million, eight hundred ninety-five thousand, three hundred ninety-nine".