83245861422889 has 81 divisors (see below), whose sum is σ = 98408756703621. Its totient is φ = 70351969290240.

The previous prime is 83245861422881. The next prime is 83245861422931. The reversal of 83245861422889 is 98822416854238.

The square root of 83245861422889 is 9123917.

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 4873793582889 + 78372067840000 = 2207667^2 + 8852800^2 .

It is not a de Polignac number, because 83245861422889 - 2³ = 83245861422881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83245861422881) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 165498730212 + ... + 165498730714.

Almost surely, 2^{83245861422889} is an apocalyptic number.

83245861422889 is the 9123917-th square number.

83245861422889 is the 4561959-th centered octagonal number.

It is an amenable number.

83245861422889 is a deficient number, since it is larger than the sum of its proper divisors (15162895280732).

83245861422889 is an frugal number, since it uses more digits than its factorization.

83245861422889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 628 counting only the distinct ones).

The product of its digits is 424673280, while the sum is 70.

The spelling of 83245861422889 in words is "eighty-three trillion, two hundred forty-five billion, eight hundred sixty-one million, four hundred twenty-two thousand, eight hundred eighty-nine".