5167745881 has 2 divisors, whose sum is σ = 5167745882. Its totient is φ = 5167745880.

The previous prime is 5167745873. The next prime is 5167745893. The reversal of 5167745881 is 1885477615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5157537856 + 10208025 = 71816^2 + 3195^2 .

It is a cyclic number.

It is not a de Polignac number, because 5167745881 - 2³ = 5167745873 is a prime.

It is a super-2 number, since 2×5167745881² = 53411194981184932322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5167745831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583872940 + 2583872941.

It is an arithmetic number, because the mean of its divisors is an integer number (2583872941).

Almost surely, 2^5167745881 is an apocalyptic number.

It is an amenable number.

5167745881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5167745881 is an equidigital number, since it uses as much as digits as its factorization.

5167745881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881600, while the sum is 52.

The square root of 5167745881 is about 71887.0355557941. The cubic root of 5167745881 is about 1728.8887559927. Note that the first 3 decimals are identical.

The spelling of 5167745881 in words is "five billion, one hundred sixty-seven million, seven hundred forty-five thousand, eight hundred eighty-one".