89415135428 has 24 divisors (see below), whose sum is σ = 161915264280. Its totient is φ = 43154451200.

The previous prime is 89415135391. The next prime is 89415135463. The reversal of 89415135428 is 82453151498.

It can be written as a sum of positive squares in 4 ways, for example, as 9351364 + 89405784064 = 3058^2 + 299008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344078 + ... + 545178.

It is an arithmetic number, because the mean of its divisors is an integer number (6746469345).

Almost surely, 2^89415135428 is an apocalyptic number.

It is an amenable number.

89415135428 is a deficient number, since it is larger than the sum of its proper divisors (72500128852).

89415135428 is a wasteful number, since it uses less digits than its factorization.

89415135428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204967 (or 204965 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 50.

The spelling of 89415135428 in words is "eighty-nine billion, four hundred fifteen million, one hundred thirty-five thousand, four hundred twenty-eight".