79292928643 has 2 divisors, whose sum is σ = 79292928644. Its totient is φ = 79292928642.

The previous prime is 79292928613. The next prime is 79292928653. The reversal of 79292928643 is 34682929297.

It is a strong prime.

It is an emirp because it is prime and its reverse (34682929297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79292928643 - 2⁹ = 79292928131 is a prime.

It is not a weakly prime, because it can be changed into another prime (79292928613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39646464321 + 39646464322.

It is an arithmetic number, because the mean of its divisors is an integer number (39646464322).

Almost surely, 2^79292928643 is an apocalyptic number.

79292928643 is a deficient number, since it is larger than the sum of its proper divisors (1).

79292928643 is an equidigital number, since it uses as much as digits as its factorization.

79292928643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 61.

The spelling of 79292928643 in words is "seventy-nine billion, two hundred ninety-two million, nine hundred twenty-eight thousand, six hundred forty-three".