345054645721 has 8 divisors (see below), whose sum is σ = 347187005504. Its totient is φ = 342922474800.

The previous prime is 345054645709. The next prime is 345054645739. The reversal of 345054645721 is 127546450543.

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 345054645721 - 2¹⁵ = 345054612953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345054645701) 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 7 ways as a sum of consecutive naturals, for example, 5986180 + ... + 6043546.

It is an arithmetic number, because the mean of its divisors is an integer number (43398375688).

Almost surely, 2^345054645721 is an apocalyptic number.

It is an amenable number.

345054645721 is a deficient number, since it is larger than the sum of its proper divisors (2132359783).

345054645721 is a wasteful number, since it uses less digits than its factorization.

345054645721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94431.

The product of its (nonzero) digits is 2016000, while the sum is 46.

The spelling of 345054645721 in words is "three hundred forty-five billion, fifty-four million, six hundred forty-five thousand, seven hundred twenty-one".