63457475436 has 48 divisors (see below), whose sum is σ = 166148314080. Its totient is φ = 20943057600.

The previous prime is 63457475401. The next prime is 63457475437.

63457475436 is a `hidden beast` number, since 6 + 3 + 4 + 57 + 47 + 543 + 6 = 666.

63457475436 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (63457475437) 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, 2897851 + ... + 2919666.

It is an arithmetic number, because the mean of its divisors is an integer number (3461423210).

Almost surely, 2^63457475436 is an apocalyptic number.

It is an amenable number.

63457475436 is an abundant number, since it is smaller than the sum of its proper divisors (102690838644).

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

63457475436 is a wasteful number, since it uses less digits than its factorization.

63457475436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5817631 (or 5817623 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 54.

The spelling of 63457475436 in words is "sixty-three billion, four hundred fifty-seven million, four hundred seventy-five thousand, four hundred thirty-six".