79998000001 has 2 divisors, whose sum is σ = 79998000002. Its totient is φ = 79998000000.

The previous prime is 79997999987. The next prime is 79998000023. The reversal of 79998000001 is 10000089997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76313510001 + 3684490000 = 276249^2 + 60700^2 .

It is a cyclic number.

It is not a de Polignac number, because 79998000001 - 2¹¹ = 79997997953 is a prime.

It is not a weakly prime, because it can be changed into another prime (79998090001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39999000000 + 39999000001.

It is an arithmetic number, because the mean of its divisors is an integer number (39999000001).

Almost surely, 2^79998000001 is an apocalyptic number.

It is an amenable number.

79998000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

79998000001 is an equidigital number, since it uses as much as digits as its factorization.

79998000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 43.

Adding to 79998000001 its reverse (10000089997), we get a palindrome (89998089998).

The spelling of 79998000001 in words is "seventy-nine billion, nine hundred ninety-eight million, one", and thus it is an aban number.