63227437897 has 16 divisors (see below), whose sum is σ = 71065870848. Its totient is φ = 55814996160.

The previous prime is 63227437879. The next prime is 63227437957. The reversal of 63227437897 is 79873472236.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63227437897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63227437837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1698747 + ... + 1735567.

It is an arithmetic number, because the mean of its divisors is an integer number (4441616928).

Almost surely, 2^63227437897 is an apocalyptic number.

It is an amenable number.

63227437897 is a deficient number, since it is larger than the sum of its proper divisors (7838432951).

63227437897 is a wasteful number, since it uses less digits than its factorization.

63227437897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42600.

The product of its digits is 21337344, while the sum is 58.

The spelling of 63227437897 in words is "sixty-three billion, two hundred twenty-seven million, four hundred thirty-seven thousand, eight hundred ninety-seven".