28689662010 has 32 divisors (see below), whose sum is σ = 71229507840. Its totient is φ = 7386763328.

The previous prime is 28689661969. The next prime is 28689662021. The reversal of 28689662010 is 1026698682.

It is a happy number.

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, 16487442 + ... + 16489181.

It is an arithmetic number, because the mean of its divisors is an integer number (2225922120).

Almost surely, 2^28689662010 is an apocalyptic number.

28689662010 is an abundant number, since it is smaller than the sum of its proper divisors (42539845830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28689662010 is a wasteful number, since it uses less digits than its factorization.

28689662010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32976662.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 28689662010 in words is "twenty-eight billion, six hundred eighty-nine million, six hundred sixty-two thousand, ten".