5181081775 has 24 divisors (see below), whose sum is σ = 6766602624. Its totient is φ = 3927554400.

The previous prime is 5181081761. The next prime is 5181081817. The reversal of 5181081775 is 5771801815.

It is not a de Polignac number, because 5181081775 - 2⁹ = 5181081263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19420 + ... + 103630.

It is an arithmetic number, because the mean of its divisors is an integer number (281941776).

Almost surely, 2^5181081775 is an apocalyptic number.

5181081775 is a deficient number, since it is larger than the sum of its proper divisors (1585520849).

5181081775 is a wasteful number, since it uses less digits than its factorization.

5181081775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84351 (or 84346 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 43.

The square root of 5181081775 is about 71979.7316958045. The cubic root of 5181081775 is about 1730.3746696503.

The spelling of 5181081775 in words is "five billion, one hundred eighty-one million, eighty-one thousand, seven hundred seventy-five".