63647667422 has 32 divisors (see below), whose sum is σ = 99515105280. Its totient is φ = 30496556160.

The previous prime is 63647667409. The next prime is 63647667431. The reversal of 63647667422 is 22476674636.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8957123 + ... + 8964225.

It is an arithmetic number, because the mean of its divisors is an integer number (3109847040).

Almost surely, 2^63647667422 is an apocalyptic number.

63647667422 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

63647667422 is a deficient number, since it is larger than the sum of its proper divisors (35867437858).

63647667422 is a wasteful number, since it uses less digits than its factorization.

63647667422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8528.

The product of its digits is 12192768, while the sum is 53.

The spelling of 63647667422 in words is "sixty-three billion, six hundred forty-seven million, six hundred sixty-seven thousand, four hundred twenty-two".