63725257611 has 6 divisors (see below), whose sum is σ = 92047594340. Its totient is φ = 42483505068.

The previous prime is 63725257591. The next prime is 63725257669. The reversal of 63725257611 is 11675252736.

It is a happy number.

63725257611 is a `hidden beast` number, since 6 + 3 + 7 + 2 + 5 + 25 + 7 + 611 = 666.

63725257611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63725257611 - 2¹⁴ = 63725241227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63725253611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3540292081 + ... + 3540292098.

Almost surely, 2^63725257611 is an apocalyptic number.

63725257611 is a deficient number, since it is larger than the sum of its proper divisors (28322336729).

63725257611 is a wasteful number, since it uses less digits than its factorization.

63725257611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080584185 (or 7080584182 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The spelling of 63725257611 in words is "sixty-three billion, seven hundred twenty-five million, two hundred fifty-seven thousand, six hundred eleven".