505958349849 has 8 divisors (see below), whose sum is σ = 674658868800. Its totient is φ = 337281698736.

The previous prime is 505958349833. The next prime is 505958349857. The reversal of 505958349849 is 948943859505.

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 505958349849 - 2⁴ = 505958349833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505958341849) 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, 5917437 + ... + 6002330.

It is an arithmetic number, because the mean of its divisors is an integer number (84332358600).

Almost surely, 2^505958349849 is an apocalyptic number.

It is an amenable number.

505958349849 is a deficient number, since it is larger than the sum of its proper divisors (168700518951).

505958349849 is a wasteful number, since it uses less digits than its factorization.

505958349849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11933919.

The product of its (nonzero) digits is 279936000, while the sum is 69.

The spelling of 505958349849 in words is "five hundred five billion, nine hundred fifty-eight million, three hundred forty-nine thousand, eight hundred forty-nine".