7900000001 has 2 divisors, whose sum is σ = 7900000002. Its totient is φ = 7900000000.

The previous prime is 7899999967. The next prime is 7900000019. The reversal of 7900000001 is 1000000097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7283769025 + 616230976 = 85345^2 + 24824^2 .

It is an emirp because it is prime and its reverse (1000000097) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7900000001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7900000051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3950000000 + 3950000001.

It is an arithmetic number, because the mean of its divisors is an integer number (3950000001).

Almost surely, 2^7900000001 is an apocalyptic number.

It is an amenable number.

7900000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

7900000001 is an equidigital number, since it uses as much as digits as its factorization.

7900000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 7900000001 is about 88881.9441787813. The cubic root of 7900000001 is about 1991.6317013739.

Adding to 7900000001 its reverse (1000000097), we get a palindrome (8900000098).

The spelling of 7900000001 in words is "seven billion, nine hundred million, one", and thus it is an aban number.