505048946181 has 32 divisors (see below), whose sum is σ = 744243532032. Its totient is φ = 302736130560.

The previous prime is 505048946167. The next prime is 505048946209. The reversal of 505048946181 is 181649840505.

It is a happy number.

It is not a de Polignac number, because 505048946181 - 2⁷ = 505048946053 is a prime.

It is a super-2 number, since 2×505048946181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505048946881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 785520 + ... + 1275593.

It is an arithmetic number, because the mean of its divisors is an integer number (23257610376).

Almost surely, 2^505048946181 is an apocalyptic number.

It is an amenable number.

505048946181 is a deficient number, since it is larger than the sum of its proper divisors (239194585851).

505048946181 is a wasteful number, since it uses less digits than its factorization.

505048946181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061293.

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 505048946181 in words is "five hundred five billion, forty-eight million, nine hundred forty-six thousand, one hundred eighty-one".