79621925983 has 2 divisors, whose sum is σ = 79621925984. Its totient is φ = 79621925982.

The previous prime is 79621925969. The next prime is 79621926011. The reversal of 79621925983 is 38952912697.

It is a weak prime.

It is an emirp because it is prime and its reverse (38952912697) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79621925983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79621925923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39810962991 + 39810962992.

It is an arithmetic number, because the mean of its divisors is an integer number (39810962992).

Almost surely, 2^79621925983 is an apocalyptic number.

79621925983 is a deficient number, since it is larger than the sum of its proper divisors (1).

79621925983 is an equidigital number, since it uses as much as digits as its factorization.

79621925983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 61.

The spelling of 79621925983 in words is "seventy-nine billion, six hundred twenty-one million, nine hundred twenty-five thousand, nine hundred eighty-three".