63697207855 has 8 divisors (see below), whose sum is σ = 76708667664. Its totient is φ = 50776420800.

The previous prime is 63697207831. The next prime is 63697207867. The reversal of 63697207855 is 55870279636.

63697207855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63697207855 - 2⁵ = 63697207823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63697207855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22666641 + ... + 22669450.

It is an arithmetic number, because the mean of its divisors is an integer number (9588583458).

Almost surely, 2^63697207855 is an apocalyptic number.

63697207855 is a deficient number, since it is larger than the sum of its proper divisors (13011459809).

63697207855 is a wasteful number, since it uses less digits than its factorization.

63697207855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45336377.

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 63697207855 in words is "sixty-three billion, six hundred ninety-seven million, two hundred seven thousand, eight hundred fifty-five".