63766257625 has 16 divisors (see below), whose sum is σ = 90948903552. Its totient is φ = 43725433200.

The previous prime is 63766257619. The next prime is 63766257641. The reversal of 63766257625 is 52675266736.

It is not a de Polignac number, because 63766257625 - 2³ = 63766257617 is a prime.

It is a super-2 number, since 2×63766257625² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36436987 + ... + 36438736.

It is an arithmetic number, because the mean of its divisors is an integer number (5684306472).

Almost surely, 2^63766257625 is an apocalyptic number.

It is an amenable number.

63766257625 is a deficient number, since it is larger than the sum of its proper divisors (27182645927).

63766257625 is an equidigital number, since it uses as much as digits as its factorization.

63766257625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72875745 (or 72875735 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 55.

The spelling of 63766257625 in words is "sixty-three billion, seven hundred sixty-six million, two hundred fifty-seven thousand, six hundred twenty-five".