18742928773 has 8 divisors (see below), whose sum is σ = 18823232736. Its totient is φ = 18662670000.

The previous prime is 18742928719. The next prime is 18742928797. The reversal of 18742928773 is 37782924781.

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 18742928773 - 2⁹ = 18742928261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18742928713) 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, 1017715 + ... + 1035967.

It is an arithmetic number, because the mean of its divisors is an integer number (2352904092).

Almost surely, 2^18742928773 is an apocalyptic number.

It is an amenable number.

18742928773 is a deficient number, since it is larger than the sum of its proper divisors (80303963).

18742928773 is a wasteful number, since it uses less digits than its factorization.

18742928773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22595.

The product of its digits is 9483264, while the sum is 58.

The spelling of 18742928773 in words is "eighteen billion, seven hundred forty-two million, nine hundred twenty-eight thousand, seven hundred seventy-three".