7664991297 has 8 divisors (see below), whose sum is σ = 10821164256. Its totient is φ = 4809406272.

The previous prime is 7664991283. The next prime is 7664991307. The reversal of 7664991297 is 7921994667.

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

It is not a de Polignac number, because 7664991297 - 2¹¹ = 7664989249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7664991297.

It is not an unprimeable number, because it can be changed into a prime (7664991277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75146923 + ... + 75147024.

It is an arithmetic number, because the mean of its divisors is an integer number (1352645532).

Almost surely, 2^7664991297 is an apocalyptic number.

It is an amenable number.

7664991297 is a deficient number, since it is larger than the sum of its proper divisors (3156172959).

7664991297 is a wasteful number, since it uses less digits than its factorization.

7664991297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150293967.

The product of its digits is 10287648, while the sum is 60.

The square root of 7664991297 is about 87549.9360193941. The cubic root of 7664991297 is about 1971.6835906162.

The spelling of 7664991297 in words is "seven billion, six hundred sixty-four million, nine hundred ninety-one thousand, two hundred ninety-seven".