355549467909 has 4 divisors (see below), whose sum is σ = 474065957216. Its totient is φ = 237032978604.

The previous prime is 355549467887. The next prime is 355549467913. The reversal of 355549467909 is 909764945553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 355549467909 - 2⁷ = 355549467781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 355549467909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355549467919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59258244649 + ... + 59258244654.

It is an arithmetic number, because the mean of its divisors is an integer number (118516489304).

Almost surely, 2^355549467909 is an apocalyptic number.

It is an amenable number.

355549467909 is a deficient number, since it is larger than the sum of its proper divisors (118516489307).

355549467909 is a wasteful number, since it uses less digits than its factorization.

355549467909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118516489306.

The product of its (nonzero) digits is 183708000, while the sum is 66.

The spelling of 355549467909 in words is "three hundred fifty-five billion, five hundred forty-nine million, four hundred sixty-seven thousand, nine hundred nine".