20392384867 has 8 divisors (see below), whose sum is σ = 22530717216. Its totient is φ = 18358361472.

The previous prime is 20392384853. The next prime is 20392384889. The reversal of 20392384867 is 76848329302.

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

It is not a de Polignac number, because 20392384867 - 2³¹ = 18244901219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20392384897) 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, 26076828 + ... + 26077609.

It is an arithmetic number, because the mean of its divisors is an integer number (2816339652).

Almost surely, 2^20392384867 is an apocalyptic number.

20392384867 is a deficient number, since it is larger than the sum of its proper divisors (2138332349).

20392384867 is a wasteful number, since it uses less digits than its factorization.

20392384867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52154477.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 20392384867 in words is "twenty billion, three hundred ninety-two million, three hundred eighty-four thousand, eight hundred sixty-seven".