63487400033 has 16 divisors (see below), whose sum is σ = 66970567680. Its totient is φ = 60018575184.

The previous prime is 63487399991. The next prime is 63487400047. The reversal of 63487400033 is 33000478436.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63487400033 - 2²⁸ = 63218964577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63487400033.

It is not an unprimeable number, because it can be changed into a prime (63487400533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28817510 + ... + 28819712.

It is an arithmetic number, because the mean of its divisors is an integer number (4185660480).

Almost surely, 2^63487400033 is an apocalyptic number.

It is an amenable number.

63487400033 is a deficient number, since it is larger than the sum of its proper divisors (3483167647).

63487400033 is a wasteful number, since it uses less digits than its factorization.

63487400033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748.

The product of its (nonzero) digits is 145152, while the sum is 38.

Adding to 63487400033 its reverse (33000478436), we get a palindrome (96487878469).

The spelling of 63487400033 in words is "sixty-three billion, four hundred eighty-seven million, four hundred thousand, thirty-three".