28866418442 has 16 divisors (see below), whose sum is σ = 43864994880. Its totient is φ = 14245100352.

The previous prime is 28866418417. The next prime is 28866418447. The reversal of 28866418442 is 24481466882.

It is a super-2 number, since 2×28866418442² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28866418447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81323 + ... + 253665.

It is an arithmetic number, because the mean of its divisors is an integer number (2741562180).

Almost surely, 2^28866418442 is an apocalyptic number.

28866418442 is a deficient number, since it is larger than the sum of its proper divisors (14998576438).

28866418442 is a wasteful number, since it uses less digits than its factorization.

28866418442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173437.

The product of its digits is 4718592, while the sum is 53.

The spelling of 28866418442 in words is "twenty-eight billion, eight hundred sixty-six million, four hundred eighteen thousand, four hundred forty-two".