63785477458736 has 80 divisors (see below), whose sum is σ = 139173281768448. Its totient is φ = 28057126444800.

The previous prime is 63785477458721. The next prime is 63785477458739.

It is a happy number.

63785477458736 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (63785477458739) 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, 164594030 + ... + 164981106.

Almost surely, 2^{63785477458736} is an apocalyptic number.

It is an amenable number.

63785477458736 is an abundant number, since it is smaller than the sum of its proper divisors (75387804309712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63785477458736 is a wasteful number, since it uses less digits than its factorization.

63785477458736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417330 (or 417324 counting only the distinct ones).

The product of its digits is 19914854400, while the sum is 80.

The spelling of 63785477458736 in words is "sixty-three trillion, seven hundred eighty-five billion, four hundred seventy-seven million, four hundred fifty-eight thousand, seven hundred thirty-six".