28864169330 has 32 divisors (see below), whose sum is σ = 53278259328. Its totient is φ = 11252310400.

The previous prime is 28864169329. The next prime is 28864169353. The reversal of 28864169330 is 3396146882.

It is a happy number.

It is a super-2 number, since 2×28864169330² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361859 + ... + 434361.

It is an arithmetic number, because the mean of its divisors is an integer number (1664945604).

Almost surely, 2^28864169330 is an apocalyptic number.

28864169330 is a deficient number, since it is larger than the sum of its proper divisors (24414089998).

28864169330 is a wasteful number, since it uses less digits than its factorization.

28864169330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73522.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 28864169330 in words is "twenty-eight billion, eight hundred sixty-four million, one hundred sixty-nine thousand, three hundred thirty".