349209653469 has 8 divisors (see below), whose sum is σ = 475519528320. Its totient is φ = 227853107136.

The previous prime is 349209653467. The next prime is 349209653479. The reversal of 349209653469 is 964356902943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 349209653469 - 2¹ = 349209653467 is a prime.

It is a super-2 number, since 2×349209653469² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349209653467) 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, 1238331964 + ... + 1238332245.

It is an arithmetic number, because the mean of its divisors is an integer number (59439941040).

Almost surely, 2^349209653469 is an apocalyptic number.

It is an amenable number.

349209653469 is a deficient number, since it is larger than the sum of its proper divisors (126309874851).

349209653469 is a wasteful number, since it uses less digits than its factorization.

349209653469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476664259.

The product of its (nonzero) digits is 37791360, while the sum is 60.

The spelling of 349209653469 in words is "three hundred forty-nine billion, two hundred nine million, six hundred fifty-three thousand, four hundred sixty-nine".