Search a number
-
+
7138371704357 is a prime number
BaseRepresentation
bin110011111100000100000…
…0111000001011000100101
3221021102101101201212102102
41213320020013001120211
51413423341124014412
623103153411221445
71334505335226665
oct147701007013045
927242341655372
107138371704357
112302403803903
1297356a2a7885
133ca1b7a5857a
141a96db4c61a5
15c5a434d28c2
hex67e081c1625

7138371704357 has 2 divisors, whose sum is σ = 7138371704358. Its totient is φ = 7138371704356.

The previous prime is 7138371704327. The next prime is 7138371704393. The reversal of 7138371704357 is 7534071738317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6871523006881 + 266848697476 = 2621359^2 + 516574^2 .

It is an emirp because it is prime and its reverse (7534071738317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7138371704357 - 214 = 7138371687973 is a prime.

It is a super-2 number, since 2×71383717043572 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7138371704327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569185852178 + 3569185852179.

It is an arithmetic number, because the mean of its divisors is an integer number (3569185852179).

Almost surely, 27138371704357 is an apocalyptic number.

It is an amenable number.

7138371704357 is a deficient number, since it is larger than the sum of its proper divisors (1).

7138371704357 is an equidigital number, since it uses as much as digits as its factorization.

7138371704357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10372320, while the sum is 56.

The spelling of 7138371704357 in words is "seven trillion, one hundred thirty-eight billion, three hundred seventy-one million, seven hundred four thousand, three hundred fifty-seven".