2173472851365 has 40 divisors (see below), whose sum is σ = 3896651552640. Its totient is φ = 1159036695648.

The previous prime is 2173472851313. The next prime is 2173472851391. The reversal of 2173472851365 is 5631582743712.

2173472851365 is a `hidden beast` number, since 2 + 1 + 7 + 3 + 47 + 28 + 513 + 65 = 666.

It is not a de Polignac number, because 2173472851365 - 2¹⁵ = 2173472818597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2850432 + ... + 3531558.

It is an arithmetic number, because the mean of its divisors is an integer number (97416288816).

Almost surely, 2^{2173472851365} is an apocalyptic number.

It is an amenable number.

2173472851365 is a deficient number, since it is larger than the sum of its proper divisors (1723178701275).

2173472851365 is an equidigital number, since it uses as much as digits as its factorization.

2173472851365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689023 (or 689014 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The spelling of 2173472851365 in words is "two trillion, one hundred seventy-three billion, four hundred seventy-two million, eight hundred fifty-one thousand, three hundred sixty-five".