20760074999 has 4 divisors (see below), whose sum is σ = 20760381336. Its totient is φ = 20759768664.

The previous prime is 20760074987. The next prime is 20760075019. The reversal of 20760074999 is 99947006702.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20760074999 - 2²⁰ = 20759026423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20760074999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20760074969) 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, 1364 + ... + 203769.

It is an arithmetic number, because the mean of its divisors is an integer number (5190095334).

Almost surely, 2^20760074999 is an apocalyptic number.

20760074999 is a deficient number, since it is larger than the sum of its proper divisors (306337).

20760074999 is a wasteful number, since it uses less digits than its factorization.

20760074999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306336.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 20760074999 in words is "twenty billion, seven hundred sixty million, seventy-four thousand, nine hundred ninety-nine".