7478448747 has 96 divisors (see below), whose sum is σ = 13228012800. Its totient is φ = 3711456000.

The previous prime is 7478448739. The next prime is 7478448751.

7478448747 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7478448747 - 2³ = 7478448739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7478448737) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4735404 + ... + 4736982.

It is an arithmetic number, because the mean of its divisors is an integer number (137791800).

Almost surely, 2^7478448747 is an apocalyptic number.

7478448747 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7478448747 is a deficient number, since it is larger than the sum of its proper divisors (5749564053).

7478448747 is a wasteful number, since it uses less digits than its factorization.

7478448747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1730 counting only the distinct ones).

The product of its digits is 39337984, while the sum is 60.

The square root of 7478448747 is about 86478.0246478838. The cubic root of 7478448747 is about 1955.5571262522.

The spelling of 7478448747 in words is "seven billion, four hundred seventy-eight million, four hundred forty-eight thousand, seven hundred forty-seven".