40255456402173 has 16 divisors (see below), whose sum is σ = 55049547502656. Its totient is φ = 26150751096960.

The previous prime is 40255456402127. The next prime is 40255456402199. The reversal of 40255456402173 is 37120465455204.

It is a happy number.

It is not a de Polignac number, because 40255456402173 - 2¹³ = 40255456393981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40255456402103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197770186 + ... + 197973627.

It is an arithmetic number, because the mean of its divisors is an integer number (3440596718916).

Almost surely, 2^{40255456402173} is an apocalyptic number.

It is an amenable number.

40255456402173 is a deficient number, since it is larger than the sum of its proper divisors (14794091100483).

40255456402173 is a wasteful number, since it uses less digits than its factorization.

40255456402173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395744684.

The product of its (nonzero) digits is 4032000, while the sum is 48.

The spelling of 40255456402173 in words is "forty trillion, two hundred fifty-five billion, four hundred fifty-six million, four hundred two thousand, one hundred seventy-three".