63530774671 has 16 divisors (see below), whose sum is σ = 78965909568. Its totient is φ = 49768416000.

The previous prime is 63530774641. The next prime is 63530774683. The reversal of 63530774671 is 17647703536.

It is a cyclic number.

It is not a de Polignac number, because 63530774671 - 2¹⁵ = 63530741903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63530774621) 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, 3446950 + ... + 3465331.

It is an arithmetic number, because the mean of its divisors is an integer number (4935369348).

Almost surely, 2^63530774671 is an apocalyptic number.

63530774671 is a deficient number, since it is larger than the sum of its proper divisors (15435134897).

63530774671 is a wasteful number, since it uses less digits than its factorization.

63530774671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912402.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 63530774671 in words is "sixty-three billion, five hundred thirty million, seven hundred seventy-four thousand, six hundred seventy-one".