342418652821 has 16 divisors (see below), whose sum is σ = 417575132800. Its totient is φ = 274245274368.

The previous prime is 342418652803. The next prime is 342418652827. The reversal of 342418652821 is 128256814243.

It is a cyclic number.

It is not a de Polignac number, because 342418652821 - 2⁵ = 342418652789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342418652827) 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, 17624376 + ... + 17643793.

It is an arithmetic number, because the mean of its divisors is an integer number (26098445800).

Almost surely, 2^342418652821 is an apocalyptic number.

It is an amenable number.

342418652821 is a deficient number, since it is larger than the sum of its proper divisors (75156479979).

342418652821 is a wasteful number, since it uses less digits than its factorization.

342418652821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35268268.

The product of its digits is 737280, while the sum is 46.

The spelling of 342418652821 in words is "three hundred forty-two billion, four hundred eighteen million, six hundred fifty-two thousand, eight hundred twenty-one".