20608939519 has 8 divisors (see below), whose sum is σ = 23732869248. Its totient is φ = 17529958680.

The previous prime is 20608939517. The next prime is 20608939541. The reversal of 20608939519 is 91593980602.

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

It is a cyclic number.

It is not a de Polignac number, because 20608939519 - 2¹ = 20608939517 is a prime.

It is a super-2 number, since 2×20608939519² (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 (20608939511) 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, 11236237 + ... + 11238070.

It is an arithmetic number, because the mean of its divisors is an integer number (2966608656).

Almost surely, 2^20608939519 is an apocalyptic number.

20608939519 is a deficient number, since it is larger than the sum of its proper divisors (3123929729).

20608939519 is a wasteful number, since it uses less digits than its factorization.

20608939519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22474445.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The spelling of 20608939519 in words is "twenty billion, six hundred eight million, nine hundred thirty-nine thousand, five hundred nineteen".