63261417889 has 16 divisors (see below), whose sum is σ = 64584095616. Its totient is φ = 61950873600.

The previous prime is 63261417859. The next prime is 63261417893. The reversal of 63261417889 is 98871416236.

63261417889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63261417889 - 2⁷ = 63261417761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63261417859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9312084 + ... + 9318874.

It is an arithmetic number, because the mean of its divisors is an integer number (4036505976).

Almost surely, 2^63261417889 is an apocalyptic number.

It is an amenable number.

63261417889 is a deficient number, since it is larger than the sum of its proper divisors (1322677727).

63261417889 is a wasteful number, since it uses less digits than its factorization.

63261417889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7656.

The product of its digits is 3483648, while the sum is 55.

The spelling of 63261417889 in words is "sixty-three billion, two hundred sixty-one million, four hundred seventeen thousand, eight hundred eighty-nine".