63349443491 has 8 divisors (see below), whose sum is σ = 63444114768. Its totient is φ = 63254844000.

The previous prime is 63349443449. The next prime is 63349443497. The reversal of 63349443491 is 19434494336.

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 63349443491 - 2²⁶ = 63282334627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63349443497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897856 + ... + 1930946.

It is an arithmetic number, because the mean of its divisors is an integer number (7930514346).

Almost surely, 2^63349443491 is an apocalyptic number.

63349443491 is a deficient number, since it is larger than the sum of its proper divisors (94671277).

63349443491 is a wasteful number, since it uses less digits than its factorization.

63349443491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35893.

The product of its digits is 3359232, while the sum is 50.

The spelling of 63349443491 in words is "sixty-three billion, three hundred forty-nine million, four hundred forty-three thousand, four hundred ninety-one".