63477749013 has 144 divisors (see below), whose sum is σ = 109447323648. Its totient is φ = 31962268800.

The previous prime is 63477749011. The next prime is 63477749033. The reversal of 63477749013 is 31094777436.

63477749013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63477749013 - 2¹ = 63477749011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63477749011) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 894052768 + ... + 894052838.

Almost surely, 2^63477749013 is an apocalyptic number.

It is an amenable number.

63477749013 is a deficient number, since it is larger than the sum of its proper divisors (45969574635).

63477749013 is a wasteful number, since it uses less digits than its factorization.

63477749013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 51.

The spelling of 63477749013 in words is "sixty-three billion, four hundred seventy-seven million, seven hundred forty-nine thousand, thirteen".