18969386395 has 8 divisors (see below), whose sum is σ = 22976005104. Its totient is φ = 15033681504.

The previous prime is 18969386363. The next prime is 18969386453. The reversal of 18969386395 is 59368396981.

It is a happy number.

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 18969386395 - 2⁵ = 18969386363 is a prime.

It is a super-2 number, since 2×18969386395² (a number of 21 digits) contains 22 as substring.

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 18969386395.

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, 17727864 + ... + 17728933.

It is an arithmetic number, because the mean of its divisors is an integer number (2872000638).

Almost surely, 2^18969386395 is an apocalyptic number.

18969386395 is a deficient number, since it is larger than the sum of its proper divisors (4006618709).

18969386395 is a wasteful number, since it uses less digits than its factorization.

18969386395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35456909.

The product of its digits is 75582720, while the sum is 67.

The spelling of 18969386395 in words is "eighteen billion, nine hundred sixty-nine million, three hundred eighty-six thousand, three hundred ninety-five".