7449281679 has 32 divisors (see below), whose sum is σ = 11740999680. Its totient is φ = 4111142400.

The previous prime is 7449281639. The next prime is 7449281701. The reversal of 7449281679 is 9761829447.

It is a happy number.

It is not a de Polignac number, because 7449281679 - 2²⁵ = 7415727247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7449281639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320119 + ... + 342599.

It is an arithmetic number, because the mean of its divisors is an integer number (366906240).

Almost surely, 2^7449281679 is an apocalyptic number.

7449281679 is a deficient number, since it is larger than the sum of its proper divisors (4291718001).

7449281679 is a wasteful number, since it uses less digits than its factorization.

7449281679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23031.

The product of its digits is 6096384, while the sum is 57.

The square root of 7449281679 is about 86309.2212860248. The cubic root of 7449281679 is about 1953.0114922234.

The spelling of 7449281679 in words is "seven billion, four hundred forty-nine million, two hundred eighty-one thousand, six hundred seventy-nine".