23863155539738 has 4 divisors (see below), whose sum is σ = 35794733309610. Its totient is φ = 11931577769868.

The previous prime is 23863155539711. The next prime is 23863155539747. The reversal of 23863155539738 is 83793555136832.

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

It can be written as a sum of positive squares in only one way, i.e., 23131896250969 + 731259288769 = 4809563^2 + 855137^2 .

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5965788884933 + ... + 5965788884936.

Almost surely, 2^{23863155539738} is an apocalyptic number.

23863155539738 is a deficient number, since it is larger than the sum of its proper divisors (11931577769872).

23863155539738 is a wasteful number, since it uses less digits than its factorization.

23863155539738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11931577769871.

The product of its digits is 489888000, while the sum is 68.

The spelling of 23863155539738 in words is "twenty-three trillion, eight hundred sixty-three billion, one hundred fifty-five million, five hundred thirty-nine thousand, seven hundred thirty-eight".