34047345781 has 8 divisors (see below), whose sum is σ = 34536522240. Its totient is φ = 33558784992.

The previous prime is 34047345767. The next prime is 34047345817. The reversal of 34047345781 is 18754374043.

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 34047345781 - 2¹⁹ = 34046821493 is a prime.

It is a super-2 number, since 2×34047345781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34047345701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41941 + ... + 264298.

It is an arithmetic number, because the mean of its divisors is an integer number (4317065280).

Almost surely, 2^34047345781 is an apocalyptic number.

It is an amenable number.

34047345781 is a deficient number, since it is larger than the sum of its proper divisors (489176459).

34047345781 is a wasteful number, since it uses less digits than its factorization.

34047345781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307835.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 34047345781 in words is "thirty-four billion, forty-seven million, three hundred forty-five thousand, seven hundred eighty-one".