20802407593 has 8 divisors (see below), whose sum is σ = 22704912000. Its totient is φ = 18901799280.

The previous prime is 20802407573. The next prime is 20802407609. The reversal of 20802407593 is 39570420802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20802407593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20802407573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451030 + ... + 495007.

It is an arithmetic number, because the mean of its divisors is an integer number (2838114000).

Almost surely, 2^20802407593 is an apocalyptic number.

It is an amenable number.

20802407593 is a deficient number, since it is larger than the sum of its proper divisors (1902504407).

20802407593 is a wasteful number, since it uses less digits than its factorization.

20802407593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948047.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 20802407593 in words is "twenty billion, eight hundred two million, four hundred seven thousand, five hundred ninety-three".