42871773025 has 9 divisors (see below), whose sum is σ = 53162282323. Its totient is φ = 34296590200.

The previous prime is 42871772941. The next prime is 42871773031. The reversal of 42871773025 is 52037717824.

The square root of 42871773025 is 207055.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15433838289 + 27437934736 = 124233^2 + 165644^2 .

It is not a de Polignac number, because 42871773025 - 2⁹ = 42871772513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1014570 + ... + 1055980.

Almost surely, 2^42871773025 is an apocalyptic number.

42871773025 is the 207055-th square number.

42871773025 is the 103528-th centered octagonal number.

It is an amenable number.

42871773025 is a deficient number, since it is larger than the sum of its proper divisors (10290509298).

42871773025 is an frugal number, since it uses more digits than its factorization.

42871773025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82832 (or 41416 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 42871773025 in words is "forty-two billion, eight hundred seventy-one million, seven hundred seventy-three thousand, twenty-five".