399521882111 has 16 divisors (see below), whose sum is σ = 469045077408. Its totient is φ = 336233011200.

The previous prime is 399521882051. The next prime is 399521882161. The reversal of 399521882111 is 111288125993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399521882111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 399521882111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399521882161) 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, 17500730 + ... + 17523543.

It is an arithmetic number, because the mean of its divisors is an integer number (29315317338).

Almost surely, 2^399521882111 is an apocalyptic number.

399521882111 is a deficient number, since it is larger than the sum of its proper divisors (69523195297).

399521882111 is a wasteful number, since it uses less digits than its factorization.

399521882111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35024362.

The product of its digits is 311040, while the sum is 50.

The spelling of 399521882111 in words is "three hundred ninety-nine billion, five hundred twenty-one million, eight hundred eighty-two thousand, one hundred eleven".