63217249902 has 16 divisors (see below), whose sum is σ = 140482777680. Its totient is φ = 21072416616.

The previous prime is 63217249891. The next prime is 63217249913. The reversal of 63217249902 is 20994271236.

63217249902 is a `hidden beast` number, since 632 + 1 + 7 + 2 + 4 + 9 + 9 + 0 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (63217249891) and next prime (63217249913).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 585344853 + ... + 585344960.

It is an arithmetic number, because the mean of its divisors is an integer number (8780173605).

Almost surely, 2^63217249902 is an apocalyptic number.

63217249902 is an abundant number, since it is smaller than the sum of its proper divisors (77265527778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63217249902 is a wasteful number, since it uses less digits than its factorization.

63217249902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170689824 (or 1170689818 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 63217249902 in words is "sixty-three billion, two hundred seventeen million, two hundred forty-nine thousand, nine hundred two".