42363021663 has 12 divisors (see below), whose sum is σ = 61224621120. Its totient is φ = 28226511456.

The previous prime is 42363021619. The next prime is 42363021683. The reversal of 42363021663 is 36612036324.

42363021663 is a `hidden beast` number, since 4 + 2 + 3 + 630 + 2 + 16 + 6 + 3 = 666.

It is not a de Polignac number, because 42363021663 - 2²⁸ = 42094586207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42363021683) 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, 1274598 + ... + 1307411.

It is an arithmetic number, because the mean of its divisors is an integer number (5102051760).

Almost surely, 2^42363021663 is an apocalyptic number.

42363021663 is a deficient number, since it is larger than the sum of its proper divisors (18861599457).

42363021663 is a wasteful number, since it uses less digits than its factorization.

42363021663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583838 (or 2583835 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

Adding to 42363021663 its reverse (36612036324), we get a palindrome (78975057987).

The spelling of 42363021663 in words is "forty-two billion, three hundred sixty-three million, twenty-one thousand, six hundred sixty-three".