172060959778 has 8 divisors (see below), whose sum is σ = 258093463068. Its totient is φ = 86029805424.

The previous prime is 172060959773. The next prime is 172060959817. The reversal of 172060959778 is 877959060271.

It can be written as a sum of positive squares in 2 ways, for example, as 170773083009 + 1287876769 = 413247^2 + 35887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (172060959773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89800 + ... + 593452.

Almost surely, 2^172060959778 is an apocalyptic number.

172060959778 is a deficient number, since it is larger than the sum of its proper divisors (86032503290).

172060959778 is a wasteful number, since it uses less digits than its factorization.

172060959778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674468.

The product of its (nonzero) digits is 13335840, while the sum is 61.

The spelling of 172060959778 in words is "one hundred seventy-two billion, sixty million, nine hundred fifty-nine thousand, seven hundred seventy-eight".