7991022701 has 2 divisors, whose sum is σ = 7991022702. Its totient is φ = 7991022700.

The previous prime is 7991022671. The next prime is 7991022727. The reversal of 7991022701 is 1072201997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7855276900 + 135745801 = 88630^2 + 11651^2 .

It is an emirp because it is prime and its reverse (1072201997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7991022701 - 2²² = 7986828397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7991022751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3995511350 + 3995511351.

It is an arithmetic number, because the mean of its divisors is an integer number (3995511351).

Almost surely, 2^7991022701 is an apocalyptic number.

It is an amenable number.

7991022701 is a deficient number, since it is larger than the sum of its proper divisors (1).

7991022701 is an equidigital number, since it uses as much as digits as its factorization.

7991022701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 7991022701 is about 89392.5203862158. The cubic root of 7991022701 is about 1999.2516117424.

The spelling of 7991022701 in words is "seven billion, nine hundred ninety-one million, twenty-two thousand, seven hundred one".