399199658011 has 32 divisors (see below), whose sum is σ = 509424132096. Its totient is φ = 303743412000.

The previous prime is 399199657993. The next prime is 399199658027. The reversal of 399199658011 is 110856991993.

It is not a de Polignac number, because 399199658011 - 2²³ = 399191269403 is a prime.

It is a super-2 number, since 2×399199658011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (399199658051) 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 31 ways as a sum of consecutive naturals, for example, 13000206 + ... + 13030876.

It is an arithmetic number, because the mean of its divisors is an integer number (15919504128).

Almost surely, 2^399199658011 is an apocalyptic number.

399199658011 is a deficient number, since it is larger than the sum of its proper divisors (110224474085).

399199658011 is a wasteful number, since it uses less digits than its factorization.

399199658011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34663.

The product of its (nonzero) digits is 4723920, while the sum is 61.

The spelling of 399199658011 in words is "three hundred ninety-nine billion, one hundred ninety-nine million, six hundred fifty-eight thousand, eleven".