6690094849 has 9 divisors (see below), whose sum is σ = 6737292289. Its totient is φ = 6643227460.

The previous prime is 6690094823. The next prime is 6690094891. The reversal of 6690094849 is 9484900966.

The square root of 6690094849 is 81793.

It is a perfect power (a square), and thus also a powerful number.

6690094849 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6690094849 - 2²¹ = 6687997697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6690094849.

It is not an unprimeable number, because it can be changed into a prime (6690094819) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21511404 + ... + 21511714.

Almost surely, 2^6690094849 is an apocalyptic number.

6690094849 is the 81793-rd square number.

6690094849 is the 40897-th centered octagonal number.

It is an amenable number.

6690094849 is a deficient number, since it is larger than the sum of its proper divisors (47197440).

6690094849 is an frugal number, since it uses more digits than its factorization.

6690094849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 55.

The cubic root of 6690094849 is about 1884.2741565811.

The spelling of 6690094849 in words is "six billion, six hundred ninety million, ninety-four thousand, eight hundred forty-nine".