5181881411 has 4 divisors (see below), whose sum is σ = 5922150192. Its totient is φ = 4441612632.

The previous prime is 5181881407. The next prime is 5181881423. The reversal of 5181881411 is 1141881815.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5181881411 - 2² = 5181881407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5181881431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370134380 + ... + 370134393.

It is an arithmetic number, because the mean of its divisors is an integer number (1480537548).

Almost surely, 2^5181881411 is an apocalyptic number.

5181881411 is a deficient number, since it is larger than the sum of its proper divisors (740268781).

5181881411 is an equidigital number, since it uses as much as digits as its factorization.

5181881411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740268780.

The product of its digits is 10240, while the sum is 38.

The square root of 5181881411 is about 71985.2860729191. The cubic root of 5181881411 is about 1730.4636857259.

The spelling of 5181881411 in words is "five billion, one hundred eighty-one million, eight hundred eighty-one thousand, four hundred eleven".