399714413929 has 2 divisors, whose sum is σ = 399714413930. Its totient is φ = 399714413928.

The previous prime is 399714413909. The next prime is 399714413951. The reversal of 399714413929 is 929314417993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330901057600 + 68813356329 = 575240^2 + 262323^2 .

It is a cyclic number.

It is not a de Polignac number, because 399714413929 - 2⁷ = 399714413801 is a prime.

It is a super-2 number, since 2×399714413929² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (399714413909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199857206964 + 199857206965.

It is an arithmetic number, because the mean of its divisors is an integer number (199857206965).

Almost surely, 2^399714413929 is an apocalyptic number.

It is an amenable number.

399714413929 is a deficient number, since it is larger than the sum of its proper divisors (1).

399714413929 is an equidigital number, since it uses as much as digits as its factorization.

399714413929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13226976, while the sum is 61.

The spelling of 399714413929 in words is "three hundred ninety-nine billion, seven hundred fourteen million, four hundred thirteen thousand, nine hundred twenty-nine".