347206238781 has 32 divisors (see below), whose sum is σ = 478866505728. Its totient is φ = 223539981120.

The previous prime is 347206238741. The next prime is 347206238807. The reversal of 347206238781 is 187832602743.

It is not a de Polignac number, because 347206238781 - 2¹⁴ = 347206222397 is a prime.

It is a super-2 number, since 2×347206238781² (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 (347206238741) 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 31 ways as a sum of consecutive naturals, for example, 129698415 + ... + 129701091.

It is an arithmetic number, because the mean of its divisors is an integer number (14964578304).

Almost surely, 2^347206238781 is an apocalyptic number.

347206238781 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

347206238781 is a deficient number, since it is larger than the sum of its proper divisors (131660266947).

347206238781 is a wasteful number, since it uses less digits than its factorization.

347206238781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 347206238781 in words is "three hundred forty-seven billion, two hundred six million, two hundred thirty-eight thousand, seven hundred eighty-one".