349391213279 has 16 divisors (see below), whose sum is σ = 364340829600. Its totient is φ = 334754574336.

The previous prime is 349391213273. The next prime is 349391213333. The reversal of 349391213279 is 972312193943.

It is a cyclic number.

It is not a de Polignac number, because 349391213279 - 2³² = 345096245983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

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 349391213279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349391213273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12677987 + ... + 12705515.

It is an arithmetic number, because the mean of its divisors is an integer number (22771301850).

Almost surely, 2^349391213279 is an apocalyptic number.

349391213279 is a deficient number, since it is larger than the sum of its proper divisors (14949616321).

349391213279 is a wasteful number, since it uses less digits than its factorization.

349391213279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33194.

The product of its digits is 2204496, while the sum is 53.

The spelling of 349391213279 in words is "three hundred forty-nine billion, three hundred ninety-one million, two hundred thirteen thousand, two hundred seventy-nine".