399138269159 has 16 divisors (see below), whose sum is σ = 460950601728. Its totient is φ = 338538154752.

The previous prime is 399138269141. The next prime is 399138269177. The reversal of 399138269159 is 951962831993.

It is an interprime number because it is at equal distance from previous prime (399138269141) and next prime (399138269177).

It is a de Polignac number, because none of the positive numbers 2^k-399138269159 is a prime.

It is a super-2 number, since 2×399138269159² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 399138269095 and 399138269104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399138269659) 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, 245642 + ... + 926615.

It is an arithmetic number, because the mean of its divisors is an integer number (28809412608).

Almost surely, 2^399138269159 is an apocalyptic number.

399138269159 is a deficient number, since it is larger than the sum of its proper divisors (61812332569).

399138269159 is a wasteful number, since it uses less digits than its factorization.

399138269159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172774.

The product of its digits is 28343520, while the sum is 65.

The spelling of 399138269159 in words is "three hundred ninety-nine billion, one hundred thirty-eight million, two hundred sixty-nine thousand, one hundred fifty-nine".