63475855857436 has 12 divisors (see below), whose sum is σ = 121181179364280. Its totient is φ = 28852661753360.

The previous prime is 63475855857397. The next prime is 63475855857481.

63475855857436 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721316543791 + ... + 721316543878.

It is an arithmetic number, because the mean of its divisors is an integer number (10098431613690).

Almost surely, 2^{63475855857436} is an apocalyptic number.

It is an amenable number.

63475855857436 is a deficient number, since it is larger than the sum of its proper divisors (57705323506844).

63475855857436 is a wasteful number, since it uses less digits than its factorization.

63475855857436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442633087684 (or 1442633087682 counting only the distinct ones).

The product of its digits is 10160640000, while the sum is 76.

The spelling of 63475855857436 in words is "sixty-three trillion, four hundred seventy-five billion, eight hundred fifty-five million, eight hundred fifty-seven thousand, four hundred thirty-six".