20713769999 has 32 divisors (see below), whose sum is σ = 25074739200. Its totient is φ = 16925086080.

The previous prime is 20713769963. The next prime is 20713770043. The reversal of 20713769999 is 99996731702.

It is a cyclic number.

It is not a de Polignac number, because 20713769999 - 2¹⁶ = 20713704463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20713769099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175412 + ... + 268694.

It is an arithmetic number, because the mean of its divisors is an integer number (783585600).

Almost surely, 2^20713769999 is an apocalyptic number.

20713769999 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20713769999 is a deficient number, since it is larger than the sum of its proper divisors (4360969201).

20713769999 is a wasteful number, since it uses less digits than its factorization.

20713769999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93375.

The product of its (nonzero) digits is 11573604, while the sum is 62.

The spelling of 20713769999 in words is "twenty billion, seven hundred thirteen million, seven hundred sixty-nine thousand, nine hundred ninety-nine".