28207773160 has 192 divisors, whose sum is σ = 81096681600. Its totient is φ = 8763600384.

The previous prime is 28207773133. The next prime is 28207773161. The reversal of 28207773160 is 6137770282.

It is not an unprimeable number, because it can be changed into a prime (28207773161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 840054 + ... + 872986.

It is an arithmetic number, because the mean of its divisors is an integer number (422378550).

Almost surely, 2^28207773160 is an apocalyptic number.

28207773160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28207773160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40548340800).

28207773160 is an abundant number, since it is smaller than the sum of its proper divisors (52888908440).

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

28207773160 is a wasteful number, since it uses less digits than its factorization.

28207773160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33000 (or 32989 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 28207773160 in words is "twenty-eight billion, two hundred seven million, seven hundred seventy-three thousand, one hundred sixty".