7958320940417 has 2 divisors, whose sum is σ = 7958320940418. Its totient is φ = 7958320940416.

The previous prime is 7958320940407. The next prime is 7958320940599. The reversal of 7958320940417 is 7140490238597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4340093057521 + 3618227882896 = 2083289^2 + 1902164^2 .

It is a cyclic number.

It is not a de Polignac number, because 7958320940417 - 2⁸ = 7958320940161 is a prime.

It is not a weakly prime, because it can be changed into another prime (7958320940407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3979160470208 + 3979160470209.

It is an arithmetic number, because the mean of its divisors is an integer number (3979160470209).

Almost surely, 2^{7958320940417} is an apocalyptic number.

It is an amenable number.

7958320940417 is a deficient number, since it is larger than the sum of its proper divisors (1).

7958320940417 is an equidigital number, since it uses as much as digits as its factorization.

7958320940417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 7958320940417 in words is "seven trillion, nine hundred fifty-eight billion, three hundred twenty million, nine hundred forty thousand, four hundred seventeen".