349279634649 has 16 divisors (see below), whose sum is σ = 508074773184. Its totient is φ = 211671432000.

The previous prime is 349279634647. The next prime is 349279634651. The reversal of 349279634649 is 946436972943.

It is an interprime number because it is at equal distance from previous prime (349279634647) and next prime (349279634651).

It is not a de Polignac number, because 349279634649 - 2¹ = 349279634647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349279634649.

It is not an unprimeable number, because it can be changed into a prime (349279634647) 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, 221299 + ... + 864599.

It is an arithmetic number, because the mean of its divisors is an integer number (31754673324).

Almost surely, 2^349279634649 is an apocalyptic number.

It is an amenable number.

349279634649 is a deficient number, since it is larger than the sum of its proper divisors (158795138535).

349279634649 is a wasteful number, since it uses less digits than its factorization.

349279634649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659768.

The product of its digits is 211631616, while the sum is 66.

The spelling of 349279634649 in words is "three hundred forty-nine billion, two hundred seventy-nine million, six hundred thirty-four thousand, six hundred forty-nine".