7479449747 has 8 divisors (see below), whose sum is σ = 9325028352. Its totient is φ = 5828142600.

The previous prime is 7479449743. The next prime is 7479449753.

7479449747 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 7479449747 - 2² = 7479449743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7479449747.

It is not an unprimeable number, because it can be changed into a prime (7479449743) 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, 48567779 + ... + 48567932.

It is an arithmetic number, because the mean of its divisors is an integer number (1165628544).

Almost surely, 2^7479449747 is an apocalyptic number.

7479449747 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7479449747 is a deficient number, since it is larger than the sum of its proper divisors (1845578605).

7479449747 is a wasteful number, since it uses less digits than its factorization.

7479449747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97135729.

The product of its digits is 49787136, while the sum is 62.

The square root of 7479449747 is about 86483.8120517360. The cubic root of 7479449747 is about 1955.6443736398.

The spelling of 7479449747 in words is "seven billion, four hundred seventy-nine million, four hundred forty-nine thousand, seven hundred forty-seven".