63694224901 has 4 divisors (see below), whose sum is σ = 63699539904. Its totient is φ = 63688909900.

The previous prime is 63694224871. The next prime is 63694224947. The reversal of 63694224901 is 10942249636.

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 63694224901 - 2¹¹ = 63694222853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63694224401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2639485 + ... + 2663506.

It is an arithmetic number, because the mean of its divisors is an integer number (15924884976).

Almost surely, 2^63694224901 is an apocalyptic number.

It is an amenable number.

63694224901 is a deficient number, since it is larger than the sum of its proper divisors (5315003).

63694224901 is a wasteful number, since it uses less digits than its factorization.

63694224901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315002.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 63694224901 in words is "sixty-three billion, six hundred ninety-four million, two hundred twenty-four thousand, nine hundred one".