20023315452786 has 128 divisors (see below), whose sum is σ = 43605740952576. Its totient is φ = 6105035704320.

The previous prime is 20023315452737. The next prime is 20023315452787. The reversal of 20023315452786 is 68725451332002.

It is not an unprimeable number, because it can be changed into a prime (20023315452787) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1984269601 + ... + 1984279691.

It is an arithmetic number, because the mean of its divisors is an integer number (340669851192).

Almost surely, 2^{20023315452786} is an apocalyptic number.

20023315452786 is an abundant number, since it is smaller than the sum of its proper divisors (23582425499790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20023315452786 is a wasteful number, since it uses less digits than its factorization.

20023315452786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12376.

The product of its (nonzero) digits is 2419200, while the sum is 48.

Adding to 20023315452786 its reverse (68725451332002), we get a palindrome (88748766784788).

The spelling of 20023315452786 in words is "twenty trillion, twenty-three billion, three hundred fifteen million, four hundred fifty-two thousand, seven hundred eighty-six".