1009171049507 has 2 divisors, whose sum is σ = 1009171049508. Its totient is φ = 1009171049506.

The previous prime is 1009171049443. The next prime is 1009171049527. The reversal of 1009171049507 is 7059401719001.

1009171049507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1009171049507 - 2⁶ = 1009171049443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1009171049527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504585524753 + 504585524754.

It is an arithmetic number, because the mean of its divisors is an integer number (504585524754).

Almost surely, 2^{1009171049507} is an apocalyptic number.

1009171049507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009171049507 is an equidigital number, since it uses as much as digits as its factorization.

1009171049507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 44.

The spelling of 1009171049507 in words is "one trillion, nine billion, one hundred seventy-one million, forty-nine thousand, five hundred seven".