391359146917 has 8 divisors (see below), whose sum is σ = 401952260736. Its totient is φ = 380766866832.

The previous prime is 391359146813. The next prime is 391359146951. The reversal of 391359146917 is 719641953193.

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 391359146917 - 2¹⁵ = 391359114149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391359140917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809448 + ... + 1199134.

It is an arithmetic number, because the mean of its divisors is an integer number (50244032592).

Almost surely, 2^391359146917 is an apocalyptic number.

391359146917 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

391359146917 is a deficient number, since it is larger than the sum of its proper divisors (10593113819).

391359146917 is a wasteful number, since it uses less digits than its factorization.

391359146917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416867.

The product of its digits is 5511240, while the sum is 58.

The spelling of 391359146917 in words is "three hundred ninety-one billion, three hundred fifty-nine million, one hundred forty-six thousand, nine hundred seventeen".