28812433360 has 20 divisors (see below), whose sum is σ = 66988907748. Its totient is φ = 11524973312.

The previous prime is 28812433343. The next prime is 28812433361. The reversal of 28812433360 is 6333421882.

It can be written as a sum of positive squares in 2 ways, for example, as 5857759296 + 22954674064 = 76536^2 + 151508^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×28812433360² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28812433361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180077629 + ... + 180077788.

Almost surely, 2^28812433360 is an apocalyptic number.

28812433360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28812433360 is an abundant number, since it is smaller than the sum of its proper divisors (38176474388).

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

28812433360 is a wasteful number, since it uses less digits than its factorization.

28812433360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360155430 (or 360155424 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 28812433360 in words is "twenty-eight billion, eight hundred twelve million, four hundred thirty-three thousand, three hundred sixty".