349974021641 has 8 divisors (see below), whose sum is σ = 351029399040. Its totient is φ = 348919092288.

The previous prime is 349974021611. The next prime is 349974021721. The reversal of 349974021641 is 146120479943.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 349974021641 - 2³⁰ = 348900279817 is a prime.

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 349974021641.

It is not an unprimeable number, because it can be changed into a prime (349974021611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486865 + ... + 1706081.

It is an arithmetic number, because the mean of its divisors is an integer number (43878674880).

Almost surely, 2^349974021641 is an apocalyptic number.

It is an amenable number.

349974021641 is a deficient number, since it is larger than the sum of its proper divisors (1055377399).

349974021641 is a wasteful number, since it uses less digits than its factorization.

349974021641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224023.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 349974021641 in words is "three hundred forty-nine billion, nine hundred seventy-four million, twenty-one thousand, six hundred forty-one".