63157946867 has 2 divisors, whose sum is σ = 63157946868. Its totient is φ = 63157946866.

The previous prime is 63157946861. The next prime is 63157946897. The reversal of 63157946867 is 76864975136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63157946867 - 2⁴ = 63157946851 is a prime.

It is not a weakly prime, because it can be changed into another prime (63157946861) 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, 31578973433 + 31578973434.

It is an arithmetic number, because the mean of its divisors is an integer number (31578973434).

Almost surely, 2^63157946867 is an apocalyptic number.

63157946867 is a deficient number, since it is larger than the sum of its proper divisors (1).

63157946867 is an equidigital number, since it uses as much as digits as its factorization.

63157946867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 62.

The spelling of 63157946867 in words is "sixty-three billion, one hundred fifty-seven million, nine hundred forty-six thousand, eight hundred sixty-seven".