354243999999 has 8 divisors (see below), whose sum is σ = 473515071280. Its totient is φ = 235567797696.

The previous prime is 354243999979. The next prime is 354244000009. The reversal of 354243999999 is 999999342453.

It is a happy number.

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

It is not a de Polignac number, because 354243999999 - 2⁸ = 354243999743 is a prime.

It is a super-3 number, since 3×354243999999³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

354243999999 is a modest number, since divided by 999999 gives 354243 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 354243999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354243999929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148715854 + ... + 148718235.

It is an arithmetic number, because the mean of its divisors is an integer number (59189383910).

Almost surely, 2^354243999999 is an apocalyptic number.

354243999999 is a deficient number, since it is larger than the sum of its proper divisors (119271071281).

354243999999 is a wasteful number, since it uses less digits than its factorization.

354243999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297434489.

The product of its digits is 765275040, while the sum is 75.

The spelling of 354243999999 in words is "three hundred fifty-four billion, two hundred forty-three million, nine hundred ninety-nine thousand, nine hundred ninety-nine".