173376728864 has 48 divisors (see below), whose sum is σ = 349722719640. Its totient is φ = 84559011840.

The previous prime is 173376728851. The next prime is 173376728873. The reversal of 173376728864 is 468827673371.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 144469928464 + 28906800400 = 380092^2 + 170020^2 .

It is a super-2 number, since 2×173376728864² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 173376728797 and 173376728806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12369092 + ... + 12383100.

Almost surely, 2^173376728864 is an apocalyptic number.

It is an amenable number.

173376728864 is an abundant number, since it is smaller than the sum of its proper divisors (176345990776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173376728864 is a wasteful number, since it uses less digits than its factorization.

173376728864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23493 (or 23485 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 62.

The spelling of 173376728864 in words is "one hundred seventy-three billion, three hundred seventy-six million, seven hundred twenty-eight thousand, eight hundred sixty-four".