63239374393 has 8 divisors (see below), whose sum is σ = 68124897288. Its totient is φ = 58356845184.

The previous prime is 63239374357. The next prime is 63239374409. The reversal of 63239374393 is 39347393236.

It can be written as a sum of positive squares in 4 ways, for example, as 30957346809 + 32282027584 = 175947^2 + 179672^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63239374393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63239374393.

It is not an unprimeable number, because it can be changed into a prime (63239374313) 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 7 ways as a sum of consecutive naturals, for example, 704446 + ... + 789127.

It is an arithmetic number, because the mean of its divisors is an integer number (8515612161).

Almost surely, 2^63239374393 is an apocalyptic number.

It is an amenable number.

63239374393 is a deficient number, since it is larger than the sum of its proper divisors (4885522895).

63239374393 is a wasteful number, since it uses less digits than its factorization.

63239374393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496843.

The product of its digits is 6613488, while the sum is 52.

The spelling of 63239374393 in words is "sixty-three billion, two hundred thirty-nine million, three hundred seventy-four thousand, three hundred ninety-three".