391352741371 has 4 divisors (see below), whose sum is σ = 397768360144. Its totient is φ = 384937122600.

The previous prime is 391352741309. The next prime is 391352741387. The reversal of 391352741371 is 173147253193.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-391352741371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (391352751371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3207809295 + ... + 3207809416.

It is an arithmetic number, because the mean of its divisors is an integer number (99442090036).

Almost surely, 2^391352741371 is an apocalyptic number.

391352741371 is a deficient number, since it is larger than the sum of its proper divisors (6415618773).

391352741371 is an equidigital number, since it uses as much as digits as its factorization.

391352741371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415618772.

The product of its digits is 476280, while the sum is 46.

The spelling of 391352741371 in words is "three hundred ninety-one billion, three hundred fifty-two million, seven hundred forty-one thousand, three hundred seventy-one".