349865464993 has 4 divisors (see below), whose sum is σ = 381671416368. Its totient is φ = 318059513620.

The previous prime is 349865464931. The next prime is 349865464999. The reversal of 349865464993 is 399464568943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349865464993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349865464999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15902975671 + ... + 15902975692.

It is an arithmetic number, because the mean of its divisors is an integer number (95417854092).

Almost surely, 2^349865464993 is an apocalyptic number.

It is an amenable number.

349865464993 is a deficient number, since it is larger than the sum of its proper divisors (31805951375).

349865464993 is a wasteful number, since it uses less digits than its factorization.

349865464993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31805951374.

The product of its digits is 604661760, while the sum is 70.

The spelling of 349865464993 in words is "three hundred forty-nine billion, eight hundred sixty-five million, four hundred sixty-four thousand, nine hundred ninety-three".