7946666497 has 16 divisors (see below), whose sum is σ = 10338296832. Its totient is φ = 5922979920.

The previous prime is 7946666491. The next prime is 7946666501.

7946666497 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7946666497 - 2⁷ = 7946666369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7946666491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241783 + ... + 2245324.

It is an arithmetic number, because the mean of its divisors is an integer number (646143552).

Almost surely, 2^7946666497 is an apocalyptic number.

7946666497 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

7946666497 is a deficient number, since it is larger than the sum of its proper divisors (2391630335).

7946666497 is a wasteful number, since it uses less digits than its factorization.

7946666497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487148.

The product of its digits is 82301184, while the sum is 64.

The square root of 7946666497 is about 89144.0771840732. The cubic root of 7946666497 is about 1995.5456280671.

The spelling of 7946666497 in words is "seven billion, nine hundred forty-six million, six hundred sixty-six thousand, four hundred ninety-seven".