6927490161 has 6 divisors (see below), whose sum is σ = 10006374690. Its totient is φ = 4618326768.

The previous prime is 6927490151. The next prime is 6927490169. The reversal of 6927490161 is 1610947296.

It can be written as a sum of positive squares in only one way, i.e., 4496507136 + 2430983025 = 67056^2 + 49305^2 .

It is not a de Polignac number, because 6927490161 - 2⁷ = 6927490033 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6927490169) 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 5 ways as a sum of consecutive naturals, for example, 384860556 + ... + 384860573.

It is an arithmetic number, because the mean of its divisors is an integer number (1667729115).

Almost surely, 2^6927490161 is an apocalyptic number.

It is an amenable number.

6927490161 is a deficient number, since it is larger than the sum of its proper divisors (3078884529).

6927490161 is a wasteful number, since it uses less digits than its factorization.

6927490161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769721135 (or 769721132 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 6927490161 is about 83231.5454680496. The cubic root of 6927490161 is about 1906.3031808924.

The spelling of 6927490161 in words is "six billion, nine hundred twenty-seven million, four hundred ninety thousand, one hundred sixty-one".