6787556826436 has 9 divisors (see below), whose sum is σ = 11878233564799. Its totient is φ = 3393775807924.

The previous prime is 6787556826361. The next prime is 6787556826437. The reversal of 6787556826436 is 6346286557876.

The square root of 6787556826436 is 2605294.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6787556826437) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4559265 + ... + 5861911.

Almost surely, 2^{6787556826436} is an apocalyptic number.

6787556826436 is the 2605294-th square number.

It is an amenable number.

6787556826436 is a deficient number, since it is larger than the sum of its proper divisors (5090676738363).

6787556826436 is an frugal number, since it uses more digits than its factorization.

6787556826436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605298 (or 1302649 counting only the distinct ones).

The product of its digits is 2438553600, while the sum is 73.

The spelling of 6787556826436 in words is "six trillion, seven hundred eighty-seven billion, five hundred fifty-six million, eight hundred twenty-six thousand, four hundred thirty-six".