2145415726173 has 32 divisors (see below), whose sum is σ = 3193487216640. Its totient is φ = 1273192231680.

The previous prime is 2145415726093. The next prime is 2145415726177. The reversal of 2145415726173 is 3716275145412.

It is a happy number.

It is not a de Polignac number, because 2145415726173 - 2¹⁰ = 2145415725149 is a prime.

It is a super-2 number, since 2×2145415726173² (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 (2145415726177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1235583 + ... + 2411948.

It is an arithmetic number, because the mean of its divisors is an integer number (99796475520).

Almost surely, 2^{2145415726173} is an apocalyptic number.

It is an amenable number.

2145415726173 is a deficient number, since it is larger than the sum of its proper divisors (1048071490467).

2145415726173 is a wasteful number, since it uses less digits than its factorization.

2145415726173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648177.

The product of its digits is 1411200, while the sum is 48.

The spelling of 2145415726173 in words is "two trillion, one hundred forty-five billion, four hundred fifteen million, seven hundred twenty-six thousand, one hundred seventy-three".