349539487173 has 12 divisors (see below), whose sum is σ = 505426929228. Its totient is φ = 232778682240.

The previous prime is 349539487111. The next prime is 349539487201. The reversal of 349539487173 is 371784935943.

It is a happy number.

349539487173 is a `hidden beast` number, since 3 + 4 + 9 + 539 + 4 + 87 + 17 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 309979470564 + 39560016609 = 556758^2 + 198897^2 .

It is not a de Polignac number, because 349539487173 - 2²⁶ = 349472378309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349539487173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349539487103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20627940 + ... + 20644877.

It is an arithmetic number, because the mean of its divisors is an integer number (42118910769).

Almost surely, 2^349539487173 is an apocalyptic number.

It is an amenable number.

349539487173 is a deficient number, since it is larger than the sum of its proper divisors (155887442055).

349539487173 is a wasteful number, since it uses less digits than its factorization.

349539487173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41273764 (or 41273761 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 349539487173 in words is "three hundred forty-nine billion, five hundred thirty-nine million, four hundred eighty-seven thousand, one hundred seventy-three".