6894130491 has 6 divisors (see below), whose sum is σ = 9958188500. Its totient is φ = 4596086988.

The previous prime is 6894130489. The next prime is 6894130511. The reversal of 6894130491 is 1940314986.

6894130491 is a `hidden beast` number, since 68 + 94 + 13 + 0 + 491 = 666.

It is not a de Polignac number, because 6894130491 - 2¹ = 6894130489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6894130421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 383007241 + ... + 383007258.

Almost surely, 2^6894130491 is an apocalyptic number.

6894130491 is a deficient number, since it is larger than the sum of its proper divisors (3064058009).

6894130491 is a wasteful number, since it uses less digits than its factorization.

6894130491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766014505 (or 766014502 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 6894130491 is about 83030.9008201164. The cubic root of 6894130491 is about 1903.2382902913.

The spelling of 6894130491 in words is "six billion, eight hundred ninety-four million, one hundred thirty thousand, four hundred ninety-one".