63316233397 has 4 divisors (see below), whose sum is σ = 65499551820. Its totient is φ = 61132914976.

The previous prime is 63316233377. The next prime is 63316233443. The reversal of 63316233397 is 79333261336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31029174801 + 32287058596 = 176151^2 + 179686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63316233397 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 (63316233367) 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, 1091659168 + ... + 1091659225.

It is an arithmetic number, because the mean of its divisors is an integer number (16374887955).

Almost surely, 2^63316233397 is an apocalyptic number.

It is an amenable number.

63316233397 is a deficient number, since it is larger than the sum of its proper divisors (2183318423).

63316233397 is a wasteful number, since it uses less digits than its factorization.

63316233397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183318422.

The product of its digits is 1102248, while the sum is 46.

It can be divided in two parts, 6331623 and 3397, that added together give a triangular number (6335020 = T₃₅₅₉).

The spelling of 63316233397 in words is "sixty-three billion, three hundred sixteen million, two hundred thirty-three thousand, three hundred ninety-seven".