63464020733 has 4 divisors (see below), whose sum is σ = 63483076608. Its totient is φ = 63444964860.

The previous prime is 63464020721. The next prime is 63464020757. The reversal of 63464020733 is 33702046436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63464020733 - 2⁴ = 63464020717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63464020783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9522941 + ... + 9529602.

It is an arithmetic number, because the mean of its divisors is an integer number (15870769152).

Almost surely, 2^63464020733 is an apocalyptic number.

It is an amenable number.

63464020733 is a deficient number, since it is larger than the sum of its proper divisors (19055875).

63464020733 is a wasteful number, since it uses less digits than its factorization.

63464020733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19055874.

The product of its (nonzero) digits is 217728, while the sum is 38.

The spelling of 63464020733 in words is "sixty-three billion, four hundred sixty-four million, twenty thousand, seven hundred thirty-three".