79543634633 has 2 divisors, whose sum is σ = 79543634634. Its totient is φ = 79543634632.

The previous prime is 79543634531. The next prime is 79543634647. The reversal of 79543634633 is 33643634597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75596402704 + 3947231929 = 274948^2 + 62827^2 .

It is a cyclic number.

It is not a de Polignac number, because 79543634633 - 2²² = 79539440329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79543630633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39771817316 + 39771817317.

It is an arithmetic number, because the mean of its divisors is an integer number (39771817317).

Almost surely, 2^79543634633 is an apocalyptic number.

It is an amenable number.

79543634633 is a deficient number, since it is larger than the sum of its proper divisors (1).

79543634633 is an equidigital number, since it uses as much as digits as its factorization.

79543634633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14696640, while the sum is 53.

The spelling of 79543634633 in words is "seventy-nine billion, five hundred forty-three million, six hundred thirty-four thousand, six hundred thirty-three".