349869753437 has 4 divisors (see below), whose sum is σ = 350220676956. Its totient is φ = 349518829920.

The previous prime is 349869753421. The next prime is 349869753547. The reversal of 349869753437 is 734357968943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 734357968943 = 43 ⋅17078092301.

It can be written as a sum of positive squares in 2 ways, for example, as 323363959801 + 26505793636 = 568651^2 + 162806^2 .

It is a cyclic number.

It is not a de Polignac number, because 349869753437 - 2⁴ = 349869753421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349869653437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175460264 + ... + 175462257.

It is an arithmetic number, because the mean of its divisors is an integer number (87555169239).

Almost surely, 2^349869753437 is an apocalyptic number.

It is an amenable number.

349869753437 is a deficient number, since it is larger than the sum of its proper divisors (350923519).

349869753437 is an equidigital number, since it uses as much as digits as its factorization.

349869753437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350923518.

The product of its digits is 411505920, while the sum is 68.

The spelling of 349869753437 in words is "three hundred forty-nine billion, eight hundred sixty-nine million, seven hundred fifty-three thousand, four hundred thirty-seven".