28232155080 has 192 divisors, whose sum is σ = 95136537600. Its totient is φ = 7253245440.

The previous prime is 28232155067. The next prime is 28232155087. The reversal of 28232155080 is 8055123282.

28232155080 is a `hidden beast` number, since 2 + 8 + 2 + 3 + 21 + 550 + 80 = 666.

It is a super-2 number, since 2×28232155080² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28232155087) 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, 2550117 + ... + 2561163.

It is an arithmetic number, because the mean of its divisors is an integer number (495502800).

Almost surely, 2^28232155080 is an apocalyptic number.

28232155080 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 28232155080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47568268800).

28232155080 is an abundant number, since it is smaller than the sum of its proper divisors (66904382520).

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

28232155080 is a wasteful number, since it uses less digits than its factorization.

28232155080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11324 (or 11317 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 28232155080 in words is "twenty-eight billion, two hundred thirty-two million, one hundred fifty-five thousand, eighty".