63385145813 has 32 divisors (see below), whose sum is σ = 77619575808. Its totient is φ = 51065164800.

The previous prime is 63385145771. The next prime is 63385145819. The reversal of 63385145813 is 31854158336.

It is a cyclic number.

It is not a de Polignac number, because 63385145813 - 2¹⁶ = 63385080277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63385145819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66731 + ... + 362247.

It is an arithmetic number, because the mean of its divisors is an integer number (2425611744).

Almost surely, 2^63385145813 is an apocalyptic number.

It is an amenable number.

63385145813 is a deficient number, since it is larger than the sum of its proper divisors (14234429995).

63385145813 is a wasteful number, since it uses less digits than its factorization.

63385145813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295613.

The product of its digits is 1036800, while the sum is 47.

The spelling of 63385145813 in words is "sixty-three billion, three hundred eighty-five million, one hundred forty-five thousand, eight hundred thirteen".