63493942913 has 4 divisors (see below), whose sum is σ = 63503731248. Its totient is φ = 63484154580.

The previous prime is 63493942901. The next prime is 63493942933. The reversal of 63493942913 is 31924939436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63493942913 - 2⁸ = 63493942657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63493942933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4884431 + ... + 4897412.

It is an arithmetic number, because the mean of its divisors is an integer number (15875932812).

Almost surely, 2^63493942913 is an apocalyptic number.

It is an amenable number.

63493942913 is a deficient number, since it is larger than the sum of its proper divisors (9788335).

63493942913 is an equidigital number, since it uses as much as digits as its factorization.

63493942913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9788334.

The product of its digits is 3779136, while the sum is 53.

The spelling of 63493942913 in words is "sixty-three billion, four hundred ninety-three million, nine hundred forty-two thousand, nine hundred thirteen".