63540547774 has 64 divisors (see below), whose sum is σ = 108340872192. Its totient is φ = 27925967520.

The previous prime is 63540547757. The next prime is 63540547781. The reversal of 63540547774 is 47774504536.

It is a super-2 number, since 2×63540547774² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16446567 + ... + 16450429.

It is an arithmetic number, because the mean of its divisors is an integer number (1692826128).

Almost surely, 2^63540547774 is an apocalyptic number.

63540547774 is a deficient number, since it is larger than the sum of its proper divisors (44800324418).

63540547774 is a wasteful number, since it uses less digits than its factorization.

63540547774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102 (or 4080 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 52.

The spelling of 63540547774 in words is "sixty-three billion, five hundred forty million, five hundred forty-seven thousand, seven hundred seventy-four".