63472633895 has 32 divisors (see below), whose sum is σ = 85160553984. Its totient is φ = 45015868800.

The previous prime is 63472633891. The next prime is 63472633897. The reversal of 63472633895 is 59833627436.

It is a happy number.

It is not a de Polignac number, because 63472633895 - 2² = 63472633891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63472633895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63472633891) 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 31 ways as a sum of consecutive naturals, for example, 1471049 + ... + 1513581.

It is an arithmetic number, because the mean of its divisors is an integer number (2661267312).

Almost surely, 2^63472633895 is an apocalyptic number.

63472633895 is a deficient number, since it is larger than the sum of its proper divisors (21687920089).

63472633895 is a wasteful number, since it uses less digits than its factorization.

63472633895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43223.

The product of its digits is 19595520, while the sum is 56.

The spelling of 63472633895 in words is "sixty-three billion, four hundred seventy-two million, six hundred thirty-three thousand, eight hundred ninety-five".