5181333766 has 16 divisors (see below), whose sum is σ = 8910671904. Its totient is φ = 2213475264.

The previous prime is 5181333761. The next prime is 5181333767. The reversal of 5181333766 is 6673331815.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181333761) 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, 586825 + ... + 595588.

It is an arithmetic number, because the mean of its divisors is an integer number (556916994).

Almost surely, 2^5181333766 is an apocalyptic number.

5181333766 is a deficient number, since it is larger than the sum of its proper divisors (3729338138).

5181333766 is a wasteful number, since it uses less digits than its factorization.

5181333766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182735.

The product of its digits is 272160, while the sum is 43.

The square root of 5181333766 is about 71981.4821047747. The cubic root of 5181333766 is about 1730.4027224646.

The spelling of 5181333766 in words is "five billion, one hundred eighty-one million, three hundred thirty-three thousand, seven hundred sixty-six".