7478668747 has 64 divisors (see below), whose sum is σ = 9145128960. Its totient is φ = 6038323200.

The previous prime is 7478668733. The next prime is 7478668763.

7478668747 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7478668747 - 2⁷ = 7478668619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7478668777) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38749483 + ... + 38749675.

It is an arithmetic number, because the mean of its divisors is an integer number (142892640).

Almost surely, 2^7478668747 is an apocalyptic number.

7478668747 is a deficient number, since it is larger than the sum of its proper divisors (1666460213).

7478668747 is a wasteful number, since it uses less digits than its factorization.

7478668747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its digits is 88510464, while the sum is 64.

The square root of 7478668747 is about 86479.2966379815. The cubic root of 7478668747 is about 1955.5763021697.

The spelling of 7478668747 in words is "seven billion, four hundred seventy-eight million, six hundred sixty-eight thousand, seven hundred forty-seven".