867402734173 has 2 divisors, whose sum is σ = 867402734174. Its totient is φ = 867402734172.

The previous prime is 867402734171. The next prime is 867402734197. The reversal of 867402734173 is 371437204768.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866289978009 + 1112756164 = 930747^2 + 33358^2 .

It is a cyclic number.

It is not a de Polignac number, because 867402734173 - 2¹ = 867402734171 is a prime.

It is a super-2 number, since 2×867402734173² (a number of 25 digits) contains 22 as substring.

Together with 867402734171, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 867402734173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867402734171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433701367086 + 433701367087.

It is an arithmetic number, because the mean of its divisors is an integer number (433701367087).

Almost surely, 2^867402734173 is an apocalyptic number.

It is an amenable number.

867402734173 is a deficient number, since it is larger than the sum of its proper divisors (1).

867402734173 is an equidigital number, since it uses as much as digits as its factorization.

867402734173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 867402734173 in words is "eight hundred sixty-seven billion, four hundred two million, seven hundred thirty-four thousand, one hundred seventy-three".