391435464107 has 4 divisors (see below), whose sum is σ = 396151554120. Its totient is φ = 386719374096.

The previous prime is 391435464103. The next prime is 391435464109. The reversal of 391435464107 is 701464534193.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701464534193 = 883 ⋅794410571.

It is a cyclic number.

It is not a de Polignac number, because 391435464107 - 2² = 391435464103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (391435464103) 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 3 ways as a sum of consecutive naturals, for example, 2358044882 + ... + 2358045047.

It is an arithmetic number, because the mean of its divisors is an integer number (99037888530).

Almost surely, 2^391435464107 is an apocalyptic number.

391435464107 is a deficient number, since it is larger than the sum of its proper divisors (4716090013).

391435464107 is an equidigital number, since it uses as much as digits as its factorization.

391435464107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716090012.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 391435464107 in words is "three hundred ninety-one billion, four hundred thirty-five million, four hundred sixty-four thousand, one hundred seven".