7464618181 has 2 divisors, whose sum is σ = 7464618182. Its totient is φ = 7464618180.

The previous prime is 7464618149. The next prime is 7464618193. The reversal of 7464618181 is 1818164647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6405441156 + 1059177025 = 80034^2 + 32545^2 .

It is a cyclic number.

It is not a de Polignac number, because 7464618181 - 2⁵ = 7464618149 is a prime.

It is a super-2 number, since 2×7464618181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7464618121) 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 as a sum of consecutive naturals, namely, 3732309090 + 3732309091.

It is an arithmetic number, because the mean of its divisors is an integer number (3732309091).

Almost surely, 2^7464618181 is an apocalyptic number.

It is an amenable number.

7464618181 is a deficient number, since it is larger than the sum of its proper divisors (1).

7464618181 is an equidigital number, since it uses as much as digits as its factorization.

7464618181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 46.

The square root of 7464618181 is about 86398.0218581421. The cubic root of 7464618181 is about 1954.3508532617.

The spelling of 7464618181 in words is "seven billion, four hundred sixty-four million, six hundred eighteen thousand, one hundred eighty-one".