6526812663 has 24 divisors (see below), whose sum is σ = 11024993408. Its totient is φ = 3642870672.

The previous prime is 6526812653. The next prime is 6526812667. The reversal of 6526812663 is 3662186256.

It is not a de Polignac number, because 6526812663 - 2⁴ = 6526812647 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6526812667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1201945 + ... + 1207362.

Almost surely, 2^6526812663 is an apocalyptic number.

6526812663 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6526812663 is a deficient number, since it is larger than the sum of its proper divisors (4498180745).

6526812663 is a wasteful number, since it uses less digits than its factorization.

6526812663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409363 (or 2409360 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 6526812663 is about 80788.6914301748. The cubic root of 6526812663 is about 1868.8181750604.

The spelling of 6526812663 in words is "six billion, five hundred twenty-six million, eight hundred twelve thousand, six hundred sixty-three".