28810601882 has 4 divisors (see below), whose sum is σ = 43215902826. Its totient is φ = 14405300940.

The previous prime is 28810601881. The next prime is 28810601893.

It is a happy number.

28810601882 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19218554161 + 9592047721 = 138631^2 + 97939^2 .

It is not an unprimeable number, because it can be changed into a prime (28810601881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7202650469 + ... + 7202650472.

Almost surely, 2^28810601882 is an apocalyptic number.

28810601882 is a deficient number, since it is larger than the sum of its proper divisors (14405300944).

28810601882 is a wasteful number, since it uses less digits than its factorization.

28810601882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14405300943.

The product of its (nonzero) digits is 98304, while the sum is 44.

The spelling of 28810601882 in words is "twenty-eight billion, eight hundred ten million, six hundred one thousand, eight hundred eighty-two".