11272173545 has 8 divisors (see below), whose sum is σ = 13536122496. Its totient is φ = 9011396016.

The previous prime is 11272173509. The next prime is 11272173611. The reversal of 11272173545 is 54537127211.

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 11272173545 - 2⁶ = 11272173481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11272173499 and 11272173508.

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, 785027 + ... + 799256.

It is an arithmetic number, because the mean of its divisors is an integer number (1692015312).

Almost surely, 2^11272173545 is an apocalyptic number.

It is an amenable number.

11272173545 is a deficient number, since it is larger than the sum of its proper divisors (2263948951).

11272173545 is a wasteful number, since it uses less digits than its factorization.

11272173545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585711.

The product of its digits is 58800, while the sum is 38.

The spelling of 11272173545 in words is "eleven billion, two hundred seventy-two million, one hundred seventy-three thousand, five hundred forty-five".