505408274090 has 8 divisors (see below), whose sum is σ = 909734893380. Its totient is φ = 202163309632.

The previous prime is 505408274083. The next prime is 505408274149. The reversal of 505408274090 is 90472804505.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 469678579561 + 35729694529 = 685331^2 + 189023^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25270413695 + ... + 25270413714.

Almost surely, 2^505408274090 is an apocalyptic number.

505408274090 is a deficient number, since it is larger than the sum of its proper divisors (404326619290).

505408274090 is a wasteful number, since it uses less digits than its factorization.

505408274090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50540827416.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 505408274090 in words is "five hundred five billion, four hundred eight million, two hundred seventy-four thousand, ninety".