1080172723279 has 16 divisors (see below), whose sum is σ = 1164300752160. Its totient is φ = 996193382400.

The previous prime is 1080172723247. The next prime is 1080172723363. The reversal of 1080172723279 is 9723272710801.

It is a cyclic number.

It is not a de Polignac number, because 1080172723279 - 2⁵ = 1080172723247 is a prime.

It is a super-2 number, since 2×1080172723279² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080172723229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87097479 + ... + 87109879.

It is an arithmetic number, because the mean of its divisors is an integer number (72768797010).

Almost surely, 2^{1080172723279} is an apocalyptic number.

1080172723279 is a deficient number, since it is larger than the sum of its proper divisors (84128028881).

1080172723279 is a wasteful number, since it uses less digits than its factorization.

1080172723279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17850.

The product of its (nonzero) digits is 592704, while the sum is 49.

The spelling of 1080172723279 in words is "one trillion, eighty billion, one hundred seventy-two million, seven hundred twenty-three thousand, two hundred seventy-nine".