63897306234 has 16 divisors (see below), whose sum is σ = 127833936672. Its totient is φ = 21292548048.

The previous prime is 63897306233. The next prime is 63897306257. The reversal of 63897306234 is 43260379836.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (63897306233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1617364 + ... + 1656399.

It is an arithmetic number, because the mean of its divisors is an integer number (7989621042).

Almost surely, 2^63897306234 is an apocalyptic number.

63897306234 is an abundant number, since it is smaller than the sum of its proper divisors (63936630438).

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

63897306234 is a wasteful number, since it uses less digits than its factorization.

63897306234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277021.

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 63897306234 in words is "sixty-three billion, eight hundred ninety-seven million, three hundred six thousand, two hundred thirty-four".