2681072663 has 2 divisors, whose sum is σ = 2681072664. Its totient is φ = 2681072662.

The previous prime is 2681072659. The next prime is 2681072687. The reversal of 2681072663 is 3662701862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2681072663 - 2² = 2681072659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2681072663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681072263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340536331 + 1340536332.

It is an arithmetic number, because the mean of its divisors is an integer number (1340536332).

Almost surely, 2^2681072663 is an apocalyptic number.

2681072663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681072663 is an equidigital number, since it uses as much as digits as its factorization.

2681072663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 2681072663 is about 51779.0755324967. The cubic root of 2681072663 is about 1389.2152054189.

The spelling of 2681072663 in words is "two billion, six hundred eighty-one million, seventy-two thousand, six hundred sixty-three".