354209385109 has 8 divisors (see below), whose sum is σ = 360780637248. Its totient is φ = 347682088320.

The previous prime is 354209385097. The next prime is 354209385121. The reversal of 354209385109 is 901583902453.

It is an interprime number because it is at equal distance from previous prime (354209385097) and next prime (354209385121).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354209385109 is a prime.

It is a super-3 number, since 3×354209385109³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354209385809) 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, 10972572 + ... + 11004805.

It is an arithmetic number, because the mean of its divisors is an integer number (45097579656).

Almost surely, 2^354209385109 is an apocalyptic number.

It is an amenable number.

354209385109 is a deficient number, since it is larger than the sum of its proper divisors (6571252139).

354209385109 is a wasteful number, since it uses less digits than its factorization.

354209385109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21977675.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 354209385109 in words is "three hundred fifty-four billion, two hundred nine million, three hundred eighty-five thousand, one hundred nine".