7479779747 has 8 divisors (see below), whose sum is σ = 8194782960. Its totient is φ = 6770613760.

The previous prime is 7479779737. The next prime is 7479779809.

7479779747 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 7479779747 - 2⁶ = 7479779683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7479779737) 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, 1456622 + ... + 1461747.

It is an arithmetic number, because the mean of its divisors is an integer number (1024347870).

Almost surely, 2^7479779747 is an apocalyptic number.

7479779747 is a deficient number, since it is larger than the sum of its proper divisors (715003213).

7479779747 is a wasteful number, since it uses less digits than its factorization.

7479779747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918613.

The product of its digits is 152473104, while the sum is 68.

The square root of 7479779747 is about 86485.7199021896. The cubic root of 7479779747 is about 1955.6731348087.

The spelling of 7479779747 in words is "seven billion, four hundred seventy-nine million, seven hundred seventy-nine thousand, seven hundred forty-seven".