172887662755 has 8 divisors (see below), whose sum is σ = 219669030432. Its totient is φ = 130174240128.

The previous prime is 172887662741. The next prime is 172887662797. The reversal of 172887662755 is 557266788271.

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

It is a cyclic number.

It is not a de Polignac number, because 172887662755 - 2⁷ = 172887662627 is a prime.

It is a super-2 number, since 2×172887662755² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016986167 + ... + 1016986336.

It is an arithmetic number, because the mean of its divisors is an integer number (27458628804).

Almost surely, 2^172887662755 is an apocalyptic number.

172887662755 is a deficient number, since it is larger than the sum of its proper divisors (46781367677).

172887662755 is a wasteful number, since it uses less digits than its factorization.

172887662755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033972525.

The product of its digits is 79027200, while the sum is 64.

The spelling of 172887662755 in words is "one hundred seventy-two billion, eight hundred eighty-seven million, six hundred sixty-two thousand, seven hundred fifty-five".