20488699219 has 4 divisors (see below), whose sum is σ = 20512607544. Its totient is φ = 20464790896.

The previous prime is 20488699169. The next prime is 20488699223. The reversal of 20488699219 is 91299688402.

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 20488699219 - 2²⁹ = 19951828307 is a prime.

It is a super-2 number, since 2×20488699219² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20488699279) 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, 11952877 + ... + 11954590.

It is an arithmetic number, because the mean of its divisors is an integer number (5128151886).

Almost surely, 2^20488699219 is an apocalyptic number.

20488699219 is a deficient number, since it is larger than the sum of its proper divisors (23908325).

20488699219 is an equidigital number, since it uses as much as digits as its factorization.

20488699219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23908324.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 20488699219 in words is "twenty billion, four hundred eighty-eight million, six hundred ninety-nine thousand, two hundred nineteen".