399290638501911 has 32 divisors (see below), whose sum is σ = 594901760008192. Its totient is φ = 236558873364480.

The previous prime is 399290638501907. The next prime is 399290638501913. The reversal of 399290638501911 is 119105836092993.

It is not a de Polignac number, because 399290638501911 - 2² = 399290638501907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399290638501913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 855376015 + ... + 855842688.

It is an arithmetic number, because the mean of its divisors is an integer number (18590680000256).

Almost surely, 2^{399290638501911} is an apocalyptic number.

399290638501911 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

399290638501911 is a deficient number, since it is larger than the sum of its proper divisors (195611121506281).

399290638501911 is a wasteful number, since it uses less digits than its factorization.

399290638501911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711218943.

The product of its (nonzero) digits is 28343520, while the sum is 66.

The spelling of 399290638501911 in words is "three hundred ninety-nine trillion, two hundred ninety billion, six hundred thirty-eight million, five hundred one thousand, nine hundred eleven".