172813760272 has 10 divisors (see below), whose sum is σ = 334826660558. Its totient is φ = 86406880128.

The previous prime is 172813760267. The next prime is 172813760281. The reversal of 172813760272 is 272067318271.

It can be written as a sum of positive squares in only one way, i.e., 161793799696 + 11019960576 = 402236^2 + 104976^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5400429993 + ... + 5400430024.

Almost surely, 2^172813760272 is an apocalyptic number.

It is an amenable number.

172813760272 is a deficient number, since it is larger than the sum of its proper divisors (162012900286).

172813760272 is a wasteful number, since it uses less digits than its factorization.

172813760272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10800860025 (or 10800860019 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 172813760272 in words is "one hundred seventy-two billion, eight hundred thirteen million, seven hundred sixty thousand, two hundred seventy-two".