28601806088 has 16 divisors (see below), whose sum is σ = 53633020860. Its totient is φ = 14299667200.

The previous prime is 28601806081. The next prime is 28601806091. The reversal of 28601806088 is 88060810682.

It can be written as a sum of positive squares in 2 ways, for example, as 25883017924 + 2718788164 = 160882^2 + 52142^2 .

It is a super-2 number, since 2×28601806088² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28601806081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52133 + ... + 244788.

Almost surely, 2^28601806088 is an apocalyptic number.

It is an amenable number.

28601806088 is a deficient number, since it is larger than the sum of its proper divisors (25031214772).

28601806088 is a wasteful number, since it uses less digits than its factorization.

28601806088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308968 (or 308964 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 28601806088 in words is "twenty-eight billion, six hundred one million, eight hundred six thousand, eighty-eight".