2571154232173 has 4 divisors (see below), whose sum is σ = 2571294436668. Its totient is φ = 2571014027680.

The previous prime is 2571154232147. The next prime is 2571154232219. The reversal of 2571154232173 is 3712324511752.

2571154232173 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 726998380164 + 1844155852009 = 852642^2 + 1357997^2 .

It is a cyclic number.

It is not a de Polignac number, because 2571154232173 - 2¹⁷ = 2571154101101 is a prime.

It is a super-2 number, since 2×2571154232173² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2571154238173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70074736 + ... + 70111417.

It is an arithmetic number, because the mean of its divisors is an integer number (642823609167).

Almost surely, 2^{2571154232173} is an apocalyptic number.

It is an amenable number.

2571154232173 is a deficient number, since it is larger than the sum of its proper divisors (140204495).

2571154232173 is a wasteful number, since it uses less digits than its factorization.

2571154232173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140204494.

The product of its digits is 352800, while the sum is 43.

The spelling of 2571154232173 in words is "two trillion, five hundred seventy-one billion, one hundred fifty-four million, two hundred thirty-two thousand, one hundred seventy-three".