859433426049025 has 27 divisors (see below), whose sum is σ = 1075584182349033. Its totient is φ = 681226308021600.

The previous prime is 859433426048959. The next prime is 859433426049103. The reversal of 859433426049025 is 520940624334958.

It is a happy number.

The square root of 859433426049025 is 29316095.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3150990660609 + 856282435388416 = 1775103^2 + 29262304^2 .

It is not a de Polignac number, because 859433426049025 - 2⁹ = 859433426048513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15977244880 + ... + 15977298670.

Almost surely, 2^{859433426049025} is an apocalyptic number.

859433426049025 is the 29316095-th square number.

859433426049025 is the 14658048-th centered octagonal number.

It is an amenable number.

859433426049025 is a deficient number, since it is larger than the sum of its proper divisors (216150756300008).

859433426049025 is an frugal number, since it uses more digits than its factorization.

859433426049025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107810 (or 53905 counting only the distinct ones).

The product of its (nonzero) digits is 223948800, while the sum is 64.

The spelling of 859433426049025 in words is "eight hundred fifty-nine trillion, four hundred thirty-three billion, four hundred twenty-six million, forty-nine thousand, twenty-five".