173643057011 has 2 divisors, whose sum is σ = 173643057012. Its totient is φ = 173643057010.

The previous prime is 173643056971. The next prime is 173643057031. The reversal of 173643057011 is 110750346371.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 173643057011 - 2²² = 173638862707 is a prime.

It is a super-2 number, since 2×173643057011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (173643057031) 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 as a sum of consecutive naturals, namely, 86821528505 + 86821528506.

It is an arithmetic number, because the mean of its divisors is an integer number (86821528506).

Almost surely, 2^173643057011 is an apocalyptic number.

173643057011 is a deficient number, since it is larger than the sum of its proper divisors (1).

173643057011 is an equidigital number, since it uses as much as digits as its factorization.

173643057011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 173643057011 in words is "one hundred seventy-three billion, six hundred forty-three million, fifty-seven thousand, eleven".