79339140851 has 2 divisors, whose sum is σ = 79339140852. Its totient is φ = 79339140850.

The previous prime is 79339140841. The next prime is 79339140887. The reversal of 79339140851 is 15804193397.

It is a weak prime.

It is an emirp because it is prime and its reverse (15804193397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79339140851 - 2⁶ = 79339140787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79339140851.

It is not a weakly prime, because it can be changed into another prime (79339140841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39669570425 + 39669570426.

It is an arithmetic number, because the mean of its divisors is an integer number (39669570426).

Almost surely, 2^79339140851 is an apocalyptic number.

79339140851 is a deficient number, since it is larger than the sum of its proper divisors (1).

79339140851 is an equidigital number, since it uses as much as digits as its factorization.

79339140851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 79339140851 in words is "seventy-nine billion, three hundred thirty-nine million, one hundred forty thousand, eight hundred fifty-one".