399476495559 has 16 divisors (see below), whose sum is σ = 555340677120.
Its totient is φ = 255109609440.
The previous prime is 399476495533. The next prime is 399476495569. The reversal of 399476495559 is 955594674993.
It is not a de Polignac number, because 399476495559 - 225 = 399442941127 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (399476495569) 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 in 15 ways as a sum of consecutive naturals, for example, 18066447 + ... + 18088544.
It is an arithmetic number, because the mean of its divisors is an integer number (34708792320).
Almost surely, 2399476495559 is an apocalyptic number.
399476495559 is a deficient number, since it is larger than the sum of its proper divisors (155864181561).
399476495559 is a wasteful number, since it uses less digits than its factorization.
399476495559 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36155150.
The product of its digits is 1653372000, while the sum is 75.
The spelling of 399476495559 in words is "three hundred ninety-nine billion, four hundred seventy-six million, four hundred ninety-five thousand, five hundred fifty-nine".