18820909595 has 8 divisors (see below), whose sum is σ = 23065625664. Its totient is φ = 14736371584.

The previous prime is 18820909579. The next prime is 18820909631. The reversal of 18820909595 is 59590902881.

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 18820909595 - 2⁴ = 18820909579 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 18820909595.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40044254 + ... + 40044723.

It is an arithmetic number, because the mean of its divisors is an integer number (2883203208).

Almost surely, 2^18820909595 is an apocalyptic number.

18820909595 is a deficient number, since it is larger than the sum of its proper divisors (4244716069).

18820909595 is an equidigital number, since it uses as much as digits as its factorization.

18820909595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80089029.

The product of its (nonzero) digits is 2332800, while the sum is 56.

The spelling of 18820909595 in words is "eighteen billion, eight hundred twenty million, nine hundred nine thousand, five hundred ninety-five".