20280883338579 has 16 divisors (see below), whose sum is σ = 27150866353440. Its totient is φ = 13465792327680.

The previous prime is 20280883338539. The next prime is 20280883338643. The reversal of 20280883338579 is 97583338808202.

It is a happy number.

It is not a de Polignac number, because 20280883338579 - 2⁷ = 20280883338451 is a prime.

It is a super-2 number, since 2×20280883338579² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20280883338509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4263474 + ... + 7664135.

It is an arithmetic number, because the mean of its divisors is an integer number (1696929147090).

Almost surely, 2^{20280883338579} is an apocalyptic number.

20280883338579 is a deficient number, since it is larger than the sum of its proper divisors (6869983014861).

20280883338579 is a wasteful number, since it uses less digits than its factorization.

20280883338579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11929910.

The product of its (nonzero) digits is 139345920, while the sum is 66.

The spelling of 20280883338579 in words is "twenty trillion, two hundred eighty billion, eight hundred eighty-three million, three hundred thirty-eight thousand, five hundred seventy-nine".