6511832641 has 2 divisors, whose sum is σ = 6511832642. Its totient is φ = 6511832640.

The previous prime is 6511832573. The next prime is 6511832659. The reversal of 6511832641 is 1462381156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5636856241 + 874976400 = 75079^2 + 29580^2 .

It is a cyclic number.

It is not a de Polignac number, because 6511832641 - 2¹¹ = 6511830593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6511832641.

It is not a weakly prime, because it can be changed into another prime (6511832141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255916320 + 3255916321.

It is an arithmetic number, because the mean of its divisors is an integer number (3255916321).

Almost surely, 2^6511832641 is an apocalyptic number.

It is an amenable number.

6511832641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6511832641 is an equidigital number, since it uses as much as digits as its factorization.

6511832641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 6511832641 is about 80695.9270409604. The cubic root of 6511832641 is about 1867.3873397399.

The spelling of 6511832641 in words is "six billion, five hundred eleven million, eight hundred thirty-two thousand, six hundred forty-one".