16923230777 has 4 divisors (see below), whose sum is σ = 16934927616. Its totient is φ = 16911533940.

The previous prime is 16923230747. The next prime is 16923230791. The reversal of 16923230777 is 77703232961.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77703232961 = 2551 ⋅30459911.

It is a cyclic number.

It is not a de Polignac number, because 16923230777 - 2⁸ = 16923230521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16923230747) 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, 5846249 + ... + 5849142.

It is an arithmetic number, because the mean of its divisors is an integer number (4233731904).

Almost surely, 2^16923230777 is an apocalyptic number.

It is an amenable number.

16923230777 is a deficient number, since it is larger than the sum of its proper divisors (11696839).

16923230777 is a wasteful number, since it uses less digits than its factorization.

16923230777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11696838.

The product of its (nonzero) digits is 666792, while the sum is 47.

The spelling of 16923230777 in words is "sixteen billion, nine hundred twenty-three million, two hundred thirty thousand, seven hundred seventy-seven".