399764600289 has 16 divisors (see below), whose sum is σ = 593045294400. Its totient is φ = 266149084608.

The previous prime is 399764600281. The next prime is 399764600297. The reversal of 399764600289 is 982006467993.

399764600289 is a `hidden beast` number, since 3 + 9 + 97 + 6 + 460 + 0 + 2 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (399764600281) and next prime (399764600297).

It is not a de Polignac number, because 399764600289 - 2³ = 399764600281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399764600281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9997704 + ... + 10037609.

It is an arithmetic number, because the mean of its divisors is an integer number (37065330900).

Almost surely, 2^399764600289 is an apocalyptic number.

It is an amenable number.

399764600289 is a deficient number, since it is larger than the sum of its proper divisors (193280694111).

399764600289 is a wasteful number, since it uses less digits than its factorization.

399764600289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20036061 (or 20036055 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 399764600289 in words is "three hundred ninety-nine billion, seven hundred sixty-four million, six hundred thousand, two hundred eighty-nine".