347474273981 has 8 divisors (see below), whose sum is σ = 354327213240. Its totient is φ = 340632328192.

The previous prime is 347474273969. The next prime is 347474273987. The reversal of 347474273981 is 189372474743.

It can be written as a sum of positive squares in 4 ways, for example, as 184977408100 + 162496865881 = 430090^2 + 403109^2 .

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 347474273981 - 2¹⁴ = 347474257597 is a prime.

It is a super-2 number, since 2×347474273981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 347474273981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347474273987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2684516 + ... + 2810973.

It is an arithmetic number, because the mean of its divisors is an integer number (44290901655).

Almost surely, 2^347474273981 is an apocalyptic number.

It is an amenable number.

347474273981 is a deficient number, since it is larger than the sum of its proper divisors (6852939259).

347474273981 is a wasteful number, since it uses less digits than its factorization.

347474273981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496735.

The product of its digits is 28449792, while the sum is 59.

The spelling of 347474273981 in words is "three hundred forty-seven billion, four hundred seventy-four million, two hundred seventy-three thousand, nine hundred eighty-one".