7474812817 has 2 divisors, whose sum is σ = 7474812818. Its totient is φ = 7474812816.

The previous prime is 7474812811. The next prime is 7474812823. The reversal of 7474812817 is 7182184747.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (7474812811) and next prime (7474812823).

It can be written as a sum of positive squares in only one way, i.e., 5521084416 + 1953728401 = 74304^2 + 44201^2 .

It is a cyclic number.

It is not a de Polignac number, because 7474812817 - 2³ = 7474812809 is a prime.

It is not a weakly prime, because it can be changed into another prime (7474812811) 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, 3737406408 + 3737406409.

It is an arithmetic number, because the mean of its divisors is an integer number (3737406409).

Almost surely, 2^7474812817 is an apocalyptic number.

It is an amenable number.

7474812817 is a deficient number, since it is larger than the sum of its proper divisors (1).

7474812817 is an equidigital number, since it uses as much as digits as its factorization.

7474812817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 702464, while the sum is 49.

The square root of 7474812817 is about 86456.9998149369. Note that the first 3 decimals coincide. The cubic root of 7474812817 is about 1955.2401522520.

The spelling of 7474812817 in words is "seven billion, four hundred seventy-four million, eight hundred twelve thousand, eight hundred seventeen".