63897712350 has 48 divisors (see below), whose sum is σ = 158483880192. Its totient is φ = 17037502560.

The previous prime is 63897712297. The next prime is 63897712357. The reversal of 63897712350 is 5321779836.

It is a junction number, because it is equal to n+sod(n) for n = 63897712293 and 63897712302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63897712357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1806939 + ... + 1841961.

It is an arithmetic number, because the mean of its divisors is an integer number (3301747504).

Almost surely, 2^63897712350 is an apocalyptic number.

63897712350 is an abundant number, since it is smaller than the sum of its proper divisors (94586167842).

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

63897712350 is a wasteful number, since it uses less digits than its factorization.

63897712350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47201 (or 47196 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 63897712350 in words is "sixty-three billion, eight hundred ninety-seven million, seven hundred twelve thousand, three hundred fifty".