8497768690 has 8 divisors (see below), whose sum is σ = 15295983660. Its totient is φ = 3399107472.

The previous prime is 8497768687. The next prime is 8497768717. The reversal of 8497768690 is 968677948.

It can be written as a sum of positive squares in 2 ways, for example, as 8080751449 + 417017241 = 89893^2 + 20421^2 .

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

It is a super-2 number, since 2×8497768690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 424888425 + ... + 424888444.

Almost surely, 2^8497768690 is an apocalyptic number.

8497768690 is a deficient number, since it is larger than the sum of its proper divisors (6798214970).

8497768690 is a wasteful number, since it uses less digits than its factorization.

8497768690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849776876.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The square root of 8497768690 is about 92183.3428011807. The cubic root of 8497768690 is about 2040.6489581178.

The spelling of 8497768690 in words is "eight billion, four hundred ninety-seven million, seven hundred sixty-eight thousand, six hundred ninety".