45281367828 has 18 divisors (see below), whose sum is σ = 114461235434. Its totient is φ = 15093789264.

The previous prime is 45281367827. The next prime is 45281367839. The reversal of 45281367828 is 82876318254.

45281367828 is a `hidden beast` number, since 4 + 528 + 1 + 36 + 7 + 82 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26364666384 + 18916701444 = 162372^2 + 137538^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45281367827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628907851 + ... + 628907922.

Almost surely, 2^45281367828 is an apocalyptic number.

It is an amenable number.

45281367828 is an abundant number, since it is smaller than the sum of its proper divisors (69179867606).

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

45281367828 is a wasteful number, since it uses less digits than its factorization.

45281367828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257815783 (or 1257815778 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 45281367828 in words is "forty-five billion, two hundred eighty-one million, three hundred sixty-seven thousand, eight hundred twenty-eight".