80608862889 has 81 divisors (see below), whose sum is σ = 130986547653. Its totient is φ = 47752568064.

The previous prime is 80608862837. The next prime is 80608862911. The reversal of 80608862889 is 98826880608.

The square root of 80608862889 is 283917.

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 45227252889 + 35381610000 = 212667^2 + 188100^2 .

It is not a de Polignac number, because 80608862889 - 2¹⁵ = 80608830121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80608862809) 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, 275115427 + ... + 275115719.

Almost surely, 2^80608862889 is an apocalyptic number.

80608862889 is the 283917-th square number.

80608862889 is the 141959-th centered octagonal number.

It is an amenable number.

80608862889 is a deficient number, since it is larger than the sum of its proper divisors (50377684764).

80608862889 is a wasteful number, since it uses less digits than its factorization.

80608862889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 63.

The spelling of 80608862889 in words is "eighty billion, six hundred eight million, eight hundred sixty-two thousand, eight hundred eighty-nine".