20034340799 has 4 divisors (see below), whose sum is σ = 21855644520. Its totient is φ = 18213037080.

The previous prime is 20034340771. The next prime is 20034340853. The reversal of 20034340799 is 99704343002.

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 20034340799 - 2¹² = 20034336703 is a prime.

It is a super-2 number, since 2×20034340799² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034340759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910651844 + ... + 910651865.

It is an arithmetic number, because the mean of its divisors is an integer number (5463911130).

Almost surely, 2^20034340799 is an apocalyptic number.

20034340799 is a deficient number, since it is larger than the sum of its proper divisors (1821303721).

20034340799 is a wasteful number, since it uses less digits than its factorization.

20034340799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821303720.

The product of its (nonzero) digits is 163296, while the sum is 41.

It can be divided in two parts, 200343 and 40799, that added together give a palindrome (241142).

The spelling of 20034340799 in words is "twenty billion, thirty-four million, three hundred forty thousand, seven hundred ninety-nine".