347785612431 has 4 divisors (see below), whose sum is σ = 463714149912. Its totient is φ = 231857074952.

The previous prime is 347785612429. The next prime is 347785612441. The reversal of 347785612431 is 134216587743.

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

It is a cyclic number.

It is not a de Polignac number, because 347785612431 - 2¹ = 347785612429 is a prime.

It is a super-2 number, since 2×347785612431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347785612441) 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, 57964268736 + ... + 57964268741.

It is an arithmetic number, because the mean of its divisors is an integer number (115928537478).

Almost surely, 2^347785612431 is an apocalyptic number.

347785612431 is a deficient number, since it is larger than the sum of its proper divisors (115928537481).

347785612431 is a wasteful number, since it uses less digits than its factorization.

347785612431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115928537480.

The product of its digits is 3386880, while the sum is 51.

The spelling of 347785612431 in words is "three hundred forty-seven billion, seven hundred eighty-five million, six hundred twelve thousand, four hundred thirty-one".