16923831877 has 2 divisors, whose sum is σ = 16923831878. Its totient is φ = 16923831876.

The previous prime is 16923831839. The next prime is 16923831889. The reversal of 16923831877 is 77813832961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15956995041 + 966836836 = 126321^2 + 31094^2 .

It is an emirp because it is prime and its reverse (77813832961) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16923831877 is a prime.

It is a super-2 number, since 2×16923831877² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16923837877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8461915938 + 8461915939.

It is an arithmetic number, because the mean of its divisors is an integer number (8461915939).

Almost surely, 2^16923831877 is an apocalyptic number.

It is an amenable number.

16923831877 is a deficient number, since it is larger than the sum of its proper divisors (1).

16923831877 is an equidigital number, since it uses as much as digits as its factorization.

16923831877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The spelling of 16923831877 in words is "sixteen billion, nine hundred twenty-three million, eight hundred thirty-one thousand, eight hundred seventy-seven".