336728391977 has 2 divisors, whose sum is σ = 336728391978. Its totient is φ = 336728391976.

The previous prime is 336728391907. The next prime is 336728392019. The reversal of 336728391977 is 779193827633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258695321641 + 78033070336 = 508621^2 + 279344^2 .

It is a cyclic number.

It is not a de Polignac number, because 336728391977 - 2⁸ = 336728391721 is a prime.

It is a super-2 number, since 2×336728391977² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (336728391907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168364195988 + 168364195989.

It is an arithmetic number, because the mean of its divisors is an integer number (168364195989).

Almost surely, 2^336728391977 is an apocalyptic number.

It is an amenable number.

336728391977 is a deficient number, since it is larger than the sum of its proper divisors (1).

336728391977 is an equidigital number, since it uses as much as digits as its factorization.

336728391977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72013536, while the sum is 65.

The spelling of 336728391977 in words is "three hundred thirty-six billion, seven hundred twenty-eight million, three hundred ninety-one thousand, nine hundred seventy-seven".