28851415882 has 4 divisors (see below), whose sum is σ = 43277123826. Its totient is φ = 14425707940.

The previous prime is 28851415847. The next prime is 28851415897.

28851415882 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., 28487025961 + 364389921 = 168781^2 + 19089^2 .

It is a super-2 number, since 2×28851415882² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7212853969 + ... + 7212853972.

Almost surely, 2^28851415882 is an apocalyptic number.

28851415882 is a deficient number, since it is larger than the sum of its proper divisors (14425707944).

28851415882 is a wasteful number, since it uses less digits than its factorization.

28851415882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14425707943.

The product of its digits is 1638400, while the sum is 52.

The spelling of 28851415882 in words is "twenty-eight billion, eight hundred fifty-one million, four hundred fifteen thousand, eight hundred eighty-two".