20829359299 has 4 divisors (see below), whose sum is σ = 23804982064. Its totient is φ = 17853736536.

The previous prime is 20829359249. The next prime is 20829359321. The reversal of 20829359299 is 99295392802.

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

It is a cyclic number.

It is not a de Polignac number, because 20829359299 - 2⁷ = 20829359171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20829359219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487811372 + ... + 1487811385.

It is an arithmetic number, because the mean of its divisors is an integer number (5951245516).

Almost surely, 2^20829359299 is an apocalyptic number.

20829359299 is a deficient number, since it is larger than the sum of its proper divisors (2975622765).

20829359299 is an equidigital number, since it uses as much as digits as its factorization.

20829359299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975622764.

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 20829359299 in words is "twenty billion, eight hundred twenty-nine million, three hundred fifty-nine thousand, two hundred ninety-nine".