6694348761 has 15 divisors (see below), whose sum is σ = 10001300133. Its totient is φ = 4462408260.

The previous prime is 6694348741. The next prime is 6694348763. The reversal of 6694348761 is 1678434966.

The square root of 6694348761 is 81819.

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

6694348761 is a `hidden beast` number, since 6 + 69 + 43 + 487 + 61 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-6694348761 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6694348698 and 6694348707.

It is not an unprimeable number, because it can be changed into a prime (6694348763) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 731826 + ... + 740916.

Almost surely, 2^6694348761 is an apocalyptic number.

6694348761 is the 81819-th square number.

6694348761 is the 40910-th centered octagonal number.

It is an amenable number.

6694348761 is a deficient number, since it is larger than the sum of its proper divisors (3306951372).

6694348761 is an frugal number, since it uses more digits than its factorization.

6694348761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18194 (or 9094 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The cubic root of 6694348761 is about 1884.6734452971.

The spelling of 6694348761 in words is "six billion, six hundred ninety-four million, three hundred forty-eight thousand, seven hundred sixty-one".