2647726189297 has 72 divisors (see below), whose sum is σ = 3297548196864. Its totient is φ = 2119234912704.

The previous prime is 2647726189153. The next prime is 2647726189301. The reversal of 2647726189297 is 7929816277462.

It is a de Polignac number, because none of the positive numbers 2^k-2647726189297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2647726189597) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 352697218 + ... + 352704724.

It is an arithmetic number, because the mean of its divisors is an integer number (45799280512).

Almost surely, 2^{2647726189297} is an apocalyptic number.

It is an amenable number.

2647726189297 is a deficient number, since it is larger than the sum of its proper divisors (649822007567).

2647726189297 is a wasteful number, since it uses less digits than its factorization.

2647726189297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7843 (or 7817 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 70.

The spelling of 2647726189297 in words is "two trillion, six hundred forty-seven billion, seven hundred twenty-six million, one hundred eighty-nine thousand, two hundred ninety-seven".