28568121360 has 80 divisors (see below), whose sum is σ = 88816654656. Its totient is φ = 7596189184.

The previous prime is 28568121353. The next prime is 28568121371. The reversal of 28568121360 is 6312186582.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×28568121360² (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, 88239 + ... + 254798.

Almost surely, 2^28568121360 is an apocalyptic number.

28568121360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28568121360 is an abundant number, since it is smaller than the sum of its proper divisors (60248533296).

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

28568121360 is a wasteful number, since it uses less digits than its factorization.

28568121360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343400 (or 343394 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 28568121360 in words is "twenty-eight billion, five hundred sixty-eight million, one hundred twenty-one thousand, three hundred sixty".