354407026809 has 16 divisors (see below), whose sum is σ = 542632769280. Its totient is φ = 203487287760.

The previous prime is 354407026789. The next prime is 354407026819. The reversal of 354407026809 is 908620704453.

It is not a de Polignac number, because 354407026809 - 2⁷ = 354407026681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (354407026819) 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, 282620607 + ... + 282621860.

It is an arithmetic number, because the mean of its divisors is an integer number (33914548080).

Almost surely, 2^354407026809 is an apocalyptic number.

It is an amenable number.

354407026809 is a deficient number, since it is larger than the sum of its proper divisors (188225742471).

354407026809 is a wasteful number, since it uses less digits than its factorization.

354407026809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565242500.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 354407026809 in words is "three hundred fifty-four billion, four hundred seven million, twenty-six thousand, eight hundred nine".