28622367720 has 96 divisors (see below), whose sum is σ = 93044764800. Its totient is φ = 7630820736.

The previous prime is 28622367701. The next prime is 28622367727. The reversal of 28622367720 is 2776322682.

28622367720 is a `hidden beast` number, since 286 + 2 + 2 + 367 + 7 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (28622367727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2282989 + ... + 2295491.

It is an arithmetic number, because the mean of its divisors is an integer number (969216300).

Almost surely, 2^28622367720 is an apocalyptic number.

28622367720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28622367720 is an abundant number, since it is smaller than the sum of its proper divisors (64422397080).

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

28622367720 is a wasteful number, since it uses less digits than its factorization.

28622367720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18879 (or 18872 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 28622367720 in words is "twenty-eight billion, six hundred twenty-two million, three hundred sixty-seven thousand, seven hundred twenty".