20038228582463 has 32 divisors (see below), whose sum is σ = 24838737100800. Its totient is φ = 15741178104960.

The previous prime is 20038228582447. The next prime is 20038228582481. The reversal of 20038228582463 is 36428582283002.

It is a Cunningham number, because it is equal to 4476408²-1.

It is not a de Polignac number, because 20038228582463 - 2⁴ = 20038228582447 is a prime.

It is a super-2 number, since 2×20038228582463² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038228581463) 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 31 ways as a sum of consecutive naturals, for example, 31015106 + ... + 31654592.

It is an arithmetic number, because the mean of its divisors is an integer number (776210534400).

Almost surely, 2^{20038228582463} is an apocalyptic number.

20038228582463 is a deficient number, since it is larger than the sum of its proper divisors (4800508518337).

20038228582463 is a wasteful number, since it uses less digits than its factorization.

20038228582463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641967.

The product of its (nonzero) digits is 8847360, while the sum is 53.

The spelling of 20038228582463 in words is "twenty trillion, thirty-eight billion, two hundred twenty-eight million, five hundred eighty-two thousand, four hundred sixty-three".