173378782055134 has 4 divisors (see below), whose sum is σ = 260068173082704. Its totient is φ = 86689391027566.

The previous prime is 173378782055099. The next prime is 173378782055177. The reversal of 173378782055134 is 431550287873371.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344695513782 + ... + 43344695513785.

It is an arithmetic number, because the mean of its divisors is an integer number (65017043270676).

Almost surely, 2^{173378782055134} is an apocalyptic number.

173378782055134 is a deficient number, since it is larger than the sum of its proper divisors (86689391027570).

173378782055134 is an equidigital number, since it uses as much as digits as its factorization.

173378782055134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86689391027569.

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 173378782055134 in words is "one hundred seventy-three trillion, three hundred seventy-eight billion, seven hundred eighty-two million, fifty-five thousand, one hundred thirty-four".