7448865491 has 8 divisors (see below), whose sum is σ = 7774183680. Its totient is φ = 7123668552.

The previous prime is 7448865481. The next prime is 7448865553. The reversal of 7448865491 is 1945688447.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7448865491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7448865421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108890 + ... + 163568.

It is an arithmetic number, because the mean of its divisors is an integer number (971772960).

Almost surely, 2^7448865491 is an apocalyptic number.

7448865491 is a deficient number, since it is larger than the sum of its proper divisors (325318189).

7448865491 is a wasteful number, since it uses less digits than its factorization.

7448865491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60625.

The product of its digits is 7741440, while the sum is 56.

The square root of 7448865491 is about 86306.8102237593. The cubic root of 7448865491 is about 1952.9751202563.

The spelling of 7448865491 in words is "seven billion, four hundred forty-eight million, eight hundred sixty-five thousand, four hundred ninety-one".