385039312347 has 4 divisors (see below), whose sum is σ = 513385749800. Its totient is φ = 256692874896.

The previous prime is 385039312327. The next prime is 385039312367. The reversal of 385039312347 is 743213930583.

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

It is an interprime number because it is at equal distance from previous prime (385039312327) and next prime (385039312367).

It is not a de Polignac number, because 385039312347 - 2²² = 385035118043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385039312296 and 385039312305.

It is not an unprimeable number, because it can be changed into a prime (385039312327) 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, 64173218722 + ... + 64173218727.

It is an arithmetic number, because the mean of its divisors is an integer number (128346437450).

Almost surely, 2^385039312347 is an apocalyptic number.

385039312347 is a deficient number, since it is larger than the sum of its proper divisors (128346437453).

385039312347 is a wasteful number, since it uses less digits than its factorization.

385039312347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128346437452.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 385039312347 in words is "three hundred eighty-five billion, thirty-nine million, three hundred twelve thousand, three hundred forty-seven".