Search a number
-
+
7971396570341 is a prime number
BaseRepresentation
bin111001111111111110001…
…0000101100110011100101
31001020001120022222121211122
41303333330100230303211
52021100410010222331
624542001541143325
71451625431610101
oct163777420546345
931201508877748
107971396570341
1125a3717606176
12a88ab06bab45
1345a912979759
141d7b638d2901
15dc54ac5517b
hex73ffc42cce5

7971396570341 has 2 divisors, whose sum is σ = 7971396570342. Its totient is φ = 7971396570340.

The previous prime is 7971396570331. The next prime is 7971396570367. The reversal of 7971396570341 is 1430756931797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7895656026241 + 75740544100 = 2809921^2 + 275210^2 .

It is an emirp because it is prime and its reverse (1430756931797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7971396570341 - 214 = 7971396553957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7971396570331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3985698285170 + 3985698285171.

It is an arithmetic number, because the mean of its divisors is an integer number (3985698285171).

Almost surely, 27971396570341 is an apocalyptic number.

It is an amenable number.

7971396570341 is a deficient number, since it is larger than the sum of its proper divisors (1).

7971396570341 is an equidigital number, since it uses as much as digits as its factorization.

7971396570341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30005640, while the sum is 62.

The spelling of 7971396570341 in words is "seven trillion, nine hundred seventy-one billion, three hundred ninety-six million, five hundred seventy thousand, three hundred forty-one".