79813041629 has 2 divisors, whose sum is σ = 79813041630. Its totient is φ = 79813041628.

The previous prime is 79813041593. The next prime is 79813041641. The reversal of 79813041629 is 92614031897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79436604025 + 376437604 = 281845^2 + 19402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79813041629 is a prime.

It is a super-2 number, since 2×79813041629² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79813041689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39906520814 + 39906520815.

It is an arithmetic number, because the mean of its divisors is an integer number (39906520815).

Almost surely, 2^79813041629 is an apocalyptic number.

It is an amenable number.

79813041629 is a deficient number, since it is larger than the sum of its proper divisors (1).

79813041629 is an equidigital number, since it uses as much as digits as its factorization.

79813041629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 79813041629 in words is "seventy-nine billion, eight hundred thirteen million, forty-one thousand, six hundred twenty-nine".