63745987561362 has 12 divisors (see below), whose sum is σ = 138116306382990. Its totient is φ = 21248662520448.

The previous prime is 63745987561351. The next prime is 63745987561429. The reversal of 63745987561362 is 26316578954736.

It is a happy number.

63745987561362 is a `hidden beast` number, since 6 + 3 + 7 + 4 + 59 + 8 + 7 + 561 + 3 + 6 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53460503565561 + 10285483995801 = 7311669^2 + 3207099^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1770721876687 + ... + 1770721876722.

Almost surely, 2^{63745987561362} is an apocalyptic number.

63745987561362 is an abundant number, since it is smaller than the sum of its proper divisors (74370318821628).

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

63745987561362 is a wasteful number, since it uses less digits than its factorization.

63745987561362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541443753417 (or 3541443753414 counting only the distinct ones).

The product of its digits is 1371686400, while the sum is 72.

The spelling of 63745987561362 in words is "sixty-three trillion, seven hundred forty-five billion, nine hundred eighty-seven million, five hundred sixty-one thousand, three hundred sixty-two".