63421368237 has 12 divisors (see below), whose sum is σ = 91611170560. Its totient is φ = 42279745608.

The previous prime is 63421368209. The next prime is 63421368247. The reversal of 63421368237 is 73286312436.

63421368237 is a `hidden beast` number, since 6 + 34 + 21 + 368 + 237 = 666.

It is not a de Polignac number, because 63421368237 - 2⁸ = 63421367981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63421368192 and 63421368201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63421368247) 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 in 11 ways as a sum of consecutive naturals, for example, 360564 + ... + 506802.

Almost surely, 2^63421368237 is an apocalyptic number.

It is an amenable number.

63421368237 is a deficient number, since it is larger than the sum of its proper divisors (28189802323).

63421368237 is a wasteful number, since it uses less digits than its factorization.

63421368237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194432 (or 194429 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The spelling of 63421368237 in words is "sixty-three billion, four hundred twenty-one million, three hundred sixty-eight thousand, two hundred thirty-seven".