63323240837 has 4 divisors (see below), whose sum is σ = 64518019020. Its totient is φ = 62128462656.

The previous prime is 63323240821. The next prime is 63323240863. The reversal of 63323240837 is 73804232336.

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 17678627521 + 45644613316 = 132961^2 + 213646^2 .

It is a cyclic number.

It is not a de Polignac number, because 63323240837 - 2⁴ = 63323240821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63323240794 and 63323240803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63323240867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597389012 + ... + 597389117.

It is an arithmetic number, because the mean of its divisors is an integer number (16129504755).

Almost surely, 2^63323240837 is an apocalyptic number.

It is an amenable number.

63323240837 is a deficient number, since it is larger than the sum of its proper divisors (1194778183).

63323240837 is a wasteful number, since it uses less digits than its factorization.

63323240837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194778182.

The product of its (nonzero) digits is 435456, while the sum is 41.

The spelling of 63323240837 in words is "sixty-three billion, three hundred twenty-three million, two hundred forty thousand, eight hundred thirty-seven".