2647685494 has 8 divisors (see below), whose sum is σ = 3972684168. Its totient is φ = 1323457440.

The previous prime is 2647685489. The next prime is 2647685497. The reversal of 2647685494 is 4945867462.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2647685497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183987 + ... + 197854.

It is an arithmetic number, because the mean of its divisors is an integer number (496585521).

Almost surely, 2^2647685494 is an apocalyptic number.

2647685494 is a deficient number, since it is larger than the sum of its proper divisors (1324998674).

2647685494 is a wasteful number, since it uses less digits than its factorization.

2647685494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385310.

The product of its digits is 11612160, while the sum is 55.

The square root of 2647685494 is about 51455.6653246268. The cubic root of 2647685494 is about 1383.4245086790.

The spelling of 2647685494 in words is "two billion, six hundred forty-seven million, six hundred eighty-five thousand, four hundred ninety-four".