7962072161 has 2 divisors, whose sum is σ = 7962072162. Its totient is φ = 7962072160.

The previous prime is 7962072149. The next prime is 7962072197. The reversal of 7962072161 is 1612702697.

7962072161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4080782161 + 3881290000 = 63881^2 + 62300^2 .

It is a cyclic number.

It is not a de Polignac number, because 7962072161 - 2²² = 7957877857 is a prime.

It is not a weakly prime, because it can be changed into another prime (7962072101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3981036080 + 3981036081.

It is an arithmetic number, because the mean of its divisors is an integer number (3981036081).

Almost surely, 2^7962072161 is an apocalyptic number.

It is an amenable number.

7962072161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7962072161 is an equidigital number, since it uses as much as digits as its factorization.

7962072161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 7962072161 is about 89230.4441376372. Note that the first 3 decimals coincide. The cubic root of 7962072161 is about 1996.8343386879.

The spelling of 7962072161 in words is "seven billion, nine hundred sixty-two million, seventy-two thousand, one hundred sixty-one".