63540223895 has 8 divisors (see below), whose sum is σ = 76348468080. Its totient is φ = 50765379520.

The previous prime is 63540223891. The next prime is 63540223963. The reversal of 63540223895 is 59832204536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63540223895 - 2² = 63540223891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63540223891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8345765 + ... + 8353374.

It is an arithmetic number, because the mean of its divisors is an integer number (9543558510).

Almost surely, 2^63540223895 is an apocalyptic number.

63540223895 is a deficient number, since it is larger than the sum of its proper divisors (12808244185).

63540223895 is a wasteful number, since it uses less digits than its factorization.

63540223895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16699905.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 63540223895 in words is "sixty-three billion, five hundred forty million, two hundred twenty-three thousand, eight hundred ninety-five".