20740382899 has 12 divisors (see below), whose sum is σ = 21057379200. Its totient is φ = 20428091600.

The previous prime is 20740382863. The next prime is 20740382939. The reversal of 20740382899 is 99828304702.

It is not a de Polignac number, because 20740382899 - 2¹⁷ = 20740251827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20740382849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9823854 + ... + 9825964.

It is an arithmetic number, because the mean of its divisors is an integer number (1754781600).

Almost surely, 2^20740382899 is an apocalyptic number.

20740382899 is a deficient number, since it is larger than the sum of its proper divisors (316996301).

20740382899 is an equidigital number, since it uses as much as digits as its factorization.

20740382899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 20740382899 in words is "twenty billion, seven hundred forty million, three hundred eighty-two thousand, eight hundred ninety-nine".