7475012449 has 2 divisors, whose sum is σ = 7475012450. Its totient is φ = 7475012448.

The previous prime is 7475012437. The next prime is 7475012473. The reversal of 7475012449 is 9442105747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4578958224 + 2896054225 = 67668^2 + 53815^2 .

It is a cyclic number.

It is not a de Polignac number, because 7475012449 - 2¹¹ = 7475010401 is a prime.

It is a super-2 number, since 2×7475012449² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7475012429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3737506224 + 3737506225.

It is an arithmetic number, because the mean of its divisors is an integer number (3737506225).

Almost surely, 2^7475012449 is an apocalyptic number.

It is an amenable number.

7475012449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7475012449 is an equidigital number, since it uses as much as digits as its factorization.

7475012449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 7475012449 is about 86458.1543233488. The cubic root of 7475012449 is about 1955.2575584862.

The spelling of 7475012449 in words is "seven billion, four hundred seventy-five million, twelve thousand, four hundred forty-nine".