63231353245 has 4 divisors (see below), whose sum is σ = 75877623900. Its totient is φ = 50585082592.

The previous prime is 63231353243. The next prime is 63231353267. The reversal of 63231353245 is 54235313236.

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 47888319556 + 15343033689 = 218834^2 + 123867^2 .

It is a cyclic number.

It is not a de Polignac number, because 63231353245 - 2¹ = 63231353243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63231353243) 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, 6323135320 + ... + 6323135329.

It is an arithmetic number, because the mean of its divisors is an integer number (18969405975).

Almost surely, 2^63231353245 is an apocalyptic number.

It is an amenable number.

63231353245 is a deficient number, since it is larger than the sum of its proper divisors (12646270655).

63231353245 is a wasteful number, since it uses less digits than its factorization.

63231353245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12646270654.

The product of its digits is 194400, while the sum is 37.

The spelling of 63231353245 in words is "sixty-three billion, two hundred thirty-one million, three hundred fifty-three thousand, two hundred forty-five".