173897275969 has 2 divisors, whose sum is σ = 173897275970. Its totient is φ = 173897275968.

The previous prime is 173897275961. The next prime is 173897275973. The reversal of 173897275969 is 969572798371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171945403569 + 1951872400 = 414663^2 + 44180^2 .

It is a cyclic number.

It is not a de Polignac number, because 173897275969 - 2³ = 173897275961 is a prime.

It is a super-2 number, since 2×173897275969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (173897275961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86948637984 + 86948637985.

It is an arithmetic number, because the mean of its divisors is an integer number (86948637985).

Almost surely, 2^173897275969 is an apocalyptic number.

It is an amenable number.

173897275969 is a deficient number, since it is larger than the sum of its proper divisors (1).

173897275969 is an equidigital number, since it uses as much as digits as its factorization.

173897275969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360067680, while the sum is 73.

The spelling of 173897275969 in words is "one hundred seventy-three billion, eight hundred ninety-seven million, two hundred seventy-five thousand, nine hundred sixty-nine".