7448288690 has 8 divisors (see below), whose sum is σ = 13406919660. Its totient is φ = 2979315472.

The previous prime is 7448288681. The next prime is 7448288699. The reversal of 7448288690 is 968828447.

It is an interprime number because it is at equal distance from previous prime (7448288681) and next prime (7448288699).

It can be written as a sum of positive squares in 2 ways, for example, as 6927399361 + 520889329 = 83231^2 + 22823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7448288690² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7448288699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372414425 + ... + 372414444.

Almost surely, 2^7448288690 is an apocalyptic number.

7448288690 is a deficient number, since it is larger than the sum of its proper divisors (5958630970).

7448288690 is a wasteful number, since it uses less digits than its factorization.

7448288690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744828876.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The square root of 7448288690 is about 86303.4685861466. The cubic root of 7448288690 is about 1952.9247095783.

The spelling of 7448288690 in words is "seven billion, four hundred forty-eight million, two hundred eighty-eight thousand, six hundred ninety".