84311833225 has 9 divisors (see below), whose sum is σ = 104548473493. Its totient is φ = 67448305120.

The previous prime is 84311833211. The next prime is 84311833231. The reversal of 84311833225 is 52233811348.

The square root of 84311833225 is 290365.

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 36786089209 + 47525744016 = 191797^2 + 218004^2 .

It is not a de Polignac number, because 84311833225 - 2¹³ = 84311825033 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, 1422789 + ... + 1480861.

Almost surely, 2^84311833225 is an apocalyptic number.

84311833225 is the 290365-th square number.

84311833225 is the 145183-rd centered octagonal number.

It is an amenable number.

84311833225 is a deficient number, since it is larger than the sum of its proper divisors (20236640268).

84311833225 is an frugal number, since it uses more digits than its factorization.

84311833225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116156 (or 58078 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The spelling of 84311833225 in words is "eighty-four billion, three hundred eleven million, eight hundred thirty-three thousand, two hundred twenty-five".