2451116081 has 2 divisors, whose sum is σ = 2451116082. Its totient is φ = 2451116080.

The previous prime is 2451116051. The next prime is 2451116093. The reversal of 2451116081 is 1806111542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1712635456 + 738480625 = 41384^2 + 27175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2451116081 - 2¹⁴ = 2451099697 is a prime.

It is a super-2 number, since 2×2451116081² = 12015940085073597122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2451116011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225558040 + 1225558041.

It is an arithmetic number, because the mean of its divisors is an integer number (1225558041).

Almost surely, 2^2451116081 is an apocalyptic number.

It is an amenable number.

2451116081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451116081 is an equidigital number, since it uses as much as digits as its factorization.

2451116081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 2451116081 is about 49508.7475200090. The cubic root of 2451116081 is about 1348.3044247323.

The spelling of 2451116081 in words is "two billion, four hundred fifty-one million, one hundred sixteen thousand, eighty-one".