63381265427 has 8 divisors (see below), whose sum is σ = 67457296656. Its totient is φ = 59343869952.

The previous prime is 63381265417. The next prime is 63381265429. The reversal of 63381265427 is 72456218336.

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

It is a cyclic number.

It is not a de Polignac number, because 63381265427 - 2²⁴ = 63364488211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63381265429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9655553 + ... + 9662114.

It is an arithmetic number, because the mean of its divisors is an integer number (8432162082).

Almost surely, 2^63381265427 is an apocalyptic number.

63381265427 is a deficient number, since it is larger than the sum of its proper divisors (4076031229).

63381265427 is a wasteful number, since it uses less digits than its factorization.

63381265427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19317877.

The product of its digits is 1451520, while the sum is 47.

The spelling of 63381265427 in words is "sixty-three billion, three hundred eighty-one million, two hundred sixty-five thousand, four hundred twenty-seven".