7664866497 has 12 divisors (see below), whose sum is σ = 11072237904. Its totient is φ = 5109558360.

The previous prime is 7664866459. The next prime is 7664866537. The reversal of 7664866497 is 7946684667.

7664866497 is a `hidden beast` number, since 7 + 6 + 6 + 486 + 64 + 97 = 666.

It is not a de Polignac number, because 7664866497 - 2⁷ = 7664866369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7664866427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216958 + ... + 249800.

It is an arithmetic number, because the mean of its divisors is an integer number (922686492).

Almost surely, 2^7664866497 is an apocalyptic number.

It is an amenable number.

7664866497 is a deficient number, since it is larger than the sum of its proper divisors (3407371407).

7664866497 is a wasteful number, since it uses less digits than its factorization.

7664866497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58780 (or 58777 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The square root of 7664866497 is about 87549.2232803924. The cubic root of 7664866497 is about 1971.6728896930.

The spelling of 7664866497 in words is "seven billion, six hundred sixty-four million, eight hundred sixty-six thousand, four hundred ninety-seven".