17380147157 has 2 divisors, whose sum is σ = 17380147158. Its totient is φ = 17380147156.

The previous prime is 17380147139. The next prime is 17380147163. The reversal of 17380147157 is 75174108371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11426327236 + 5953819921 = 106894^2 + 77161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17380147157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17380147357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8690073578 + 8690073579.

It is an arithmetic number, because the mean of its divisors is an integer number (8690073579).

Almost surely, 2^17380147157 is an apocalyptic number.

It is an amenable number.

17380147157 is a deficient number, since it is larger than the sum of its proper divisors (1).

17380147157 is an equidigital number, since it uses as much as digits as its factorization.

17380147157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 17380147157 in words is "seventeen billion, three hundred eighty million, one hundred forty-seven thousand, one hundred fifty-seven".