354218321723 has 16 divisors (see below), whose sum is σ = 419022348480. Its totient is φ = 292976750976.

The previous prime is 354218321719. The next prime is 354218321801. The reversal of 354218321723 is 327123812453.

It is not a de Polignac number, because 354218321723 - 2² = 354218321719 is a prime.

It is a super-3 number, since 3×354218321723³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354218321323) 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, 151640 + ... + 855237.

It is an arithmetic number, because the mean of its divisors is an integer number (26188896780).

Almost surely, 2^354218321723 is an apocalyptic number.

354218321723 is a deficient number, since it is larger than the sum of its proper divisors (64804026757).

354218321723 is a wasteful number, since it uses less digits than its factorization.

354218321723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008646.

The product of its digits is 241920, while the sum is 41.

The spelling of 354218321723 in words is "three hundred fifty-four billion, two hundred eighteen million, three hundred twenty-one thousand, seven hundred twenty-three".