347478031813 has 16 divisors (see below), whose sum is σ = 396862804800. Its totient is φ = 301321713280.

The previous prime is 347478031783. The next prime is 347478031841. The reversal of 347478031813 is 318130874743.

It is a cyclic number.

It is not a de Polignac number, because 347478031813 - 2²¹ = 347475934661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347478032813) 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 15 ways as a sum of consecutive naturals, for example, 6535408 + ... + 6588361.

It is an arithmetic number, because the mean of its divisors is an integer number (24803925300).

Almost surely, 2^347478031813 is an apocalyptic number.

It is an amenable number.

347478031813 is a deficient number, since it is larger than the sum of its proper divisors (49384772987).

347478031813 is a wasteful number, since it uses less digits than its factorization.

347478031813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123892.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 347478031813 in words is "three hundred forty-seven billion, four hundred seventy-eight million, thirty-one thousand, eight hundred thirteen".