63256385697 has 24 divisors (see below), whose sum is σ = 89137629504. Its totient is φ = 39826534176.

The previous prime is 63256385659. The next prime is 63256385771. The reversal of 63256385697 is 79658365236.

It is not a de Polignac number, because 63256385697 - 2⁸ = 63256385441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63256385697.

It is not an unprimeable number, because it can be changed into a prime (63256385657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357183 + ... + 504075.

It is an arithmetic number, because the mean of its divisors is an integer number (3714067896).

Almost surely, 2^63256385697 is an apocalyptic number.

It is an amenable number.

63256385697 is a deficient number, since it is larger than the sum of its proper divisors (25881243807).

63256385697 is a wasteful number, since it uses less digits than its factorization.

63256385697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147077 (or 146998 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 60.

The spelling of 63256385697 in words is "sixty-three billion, two hundred fifty-six million, three hundred eighty-five thousand, six hundred ninety-seven".