2175170009497 has 4 divisors (see below), whose sum is σ = 2175450431076. Its totient is φ = 2174889587920.

The previous prime is 2175170009479. The next prime is 2175170009587. The reversal of 2175170009497 is 7949000715712.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1969612958041 + 205557051456 = 1403429^2 + 453384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2175170009497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2175170069497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140199154 + ... + 140214667.

It is an arithmetic number, because the mean of its divisors is an integer number (543862607769).

Almost surely, 2^{2175170009497} is an apocalyptic number.

It is an amenable number.

2175170009497 is a deficient number, since it is larger than the sum of its proper divisors (280421579).

2175170009497 is an equidigital number, since it uses as much as digits as its factorization.

2175170009497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280421578.

The product of its (nonzero) digits is 1111320, while the sum is 52.

The spelling of 2175170009497 in words is "two trillion, one hundred seventy-five billion, one hundred seventy million, nine thousand, four hundred ninety-seven".