20036280993 has 8 divisors (see below), whose sum is σ = 26724403488. Its totient is φ = 13352839584.

The previous prime is 20036280977. The next prime is 20036281009. The reversal of 20036280993 is 39908263002.

It is an interprime number because it is at equal distance from previous prime (20036280977) and next prime (20036281009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20036280993 - 2⁴ = 20036280977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20036280193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160271 + ... + 1177412.

It is an arithmetic number, because the mean of its divisors is an integer number (3340550436).

Almost surely, 2^20036280993 is an apocalyptic number.

It is an amenable number.

20036280993 is a deficient number, since it is larger than the sum of its proper divisors (6688122495).

20036280993 is a wasteful number, since it uses less digits than its factorization.

20036280993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340543.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 20036280993 in words is "twenty billion, thirty-six million, two hundred eighty thousand, nine hundred ninety-three".