391226481359 has 8 divisors (see below), whose sum is σ = 451456911360. Its totient is φ = 332081284536.

The previous prime is 391226481337. The next prime is 391226481377. The reversal of 391226481359 is 953184622193.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 391226481359 - 2⁸ = 391226481103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 391226481359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391226481859) 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 7 ways as a sum of consecutive naturals, for example, 271307519 + ... + 271308960.

It is an arithmetic number, because the mean of its divisors is an integer number (56432113920).

Almost surely, 2^391226481359 is an apocalyptic number.

391226481359 is a deficient number, since it is larger than the sum of its proper divisors (60230430001).

391226481359 is a wasteful number, since it uses less digits than its factorization.

391226481359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542616589.

The product of its digits is 2799360, while the sum is 53.

The spelling of 391226481359 in words is "three hundred ninety-one billion, two hundred twenty-six million, four hundred eighty-one thousand, three hundred fifty-nine".