7920196811 has 2 divisors, whose sum is σ = 7920196812. Its totient is φ = 7920196810.

The previous prime is 7920196769. The next prime is 7920196829. The reversal of 7920196811 is 1186910297.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7920196811 - 2²⁶ = 7853087947 is a prime.

It is not a weakly prime, because it can be changed into another prime (7920196841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3960098405 + 3960098406.

It is an arithmetic number, because the mean of its divisors is an integer number (3960098406).

Almost surely, 2^7920196811 is an apocalyptic number.

7920196811 is a deficient number, since it is larger than the sum of its proper divisors (1).

7920196811 is an equidigital number, since it uses as much as digits as its factorization.

7920196811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 44.

The square root of 7920196811 is about 88995.4875878547. The cubic root of 7920196811 is about 1993.3274978639.

The spelling of 7920196811 in words is "seven billion, nine hundred twenty million, one hundred ninety-six thousand, eight hundred eleven".