354447671885 has 8 divisors (see below), whose sum is σ = 425379643416. Its totient is φ = 283529846080.

The previous prime is 354447671863. The next prime is 354447671887. The reversal of 354447671885 is 588176744453.

It can be written as a sum of positive squares in 4 ways, for example, as 43907849764 + 310539822121 = 209542^2 + 557261^2 .

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

It is not a de Polignac number, because 354447671885 - 2²⁰ = 354446623309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354447671887) 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, 3481226 + ... + 3581595.

It is an arithmetic number, because the mean of its divisors is an integer number (53172455427).

Almost surely, 2^354447671885 is an apocalyptic number.

It is an amenable number.

354447671885 is a deficient number, since it is larger than the sum of its proper divisors (70931971531).

354447671885 is a wasteful number, since it uses less digits than its factorization.

354447671885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7072863.

The product of its digits is 90316800, while the sum is 62.

The spelling of 354447671885 in words is "three hundred fifty-four billion, four hundred forty-seven million, six hundred seventy-one thousand, eight hundred eighty-five".