63820619698671 has 12 divisors (see below), whose sum is σ = 100565824979880. Its totient is φ = 38679163453680.

The previous prime is 63820619698663. The next prime is 63820619698681. The reversal of 63820619698671 is 17689691602836.

63820619698671 is a `hidden beast` number, since 6 + 382 + 0 + 6 + 1 + 96 + 98 + 6 + 71 = 666.

It is not a de Polignac number, because 63820619698671 - 2³ = 63820619698663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63820619698671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63820619698681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322326362016 + ... + 322326362213.

It is an arithmetic number, because the mean of its divisors is an integer number (8380485414990).

Almost surely, 2^{63820619698671} is an apocalyptic number.

63820619698671 is a deficient number, since it is larger than the sum of its proper divisors (36745205281209).

63820619698671 is a wasteful number, since it uses less digits than its factorization.

63820619698671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644652724246 (or 644652724243 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 72.

The spelling of 63820619698671 in words is "sixty-three trillion, eight hundred twenty billion, six hundred nineteen million, six hundred ninety-eight thousand, six hundred seventy-one".