28874827340 has 48 divisors (see below), whose sum is σ = 61845395808. Its totient is φ = 11321731584.

The previous prime is 28874827337. The next prime is 28874827351. The reversal of 28874827340 is 4372847882.

It is a super-2 number, since 2×28874827340² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 177314 + ... + 298646.

It is an arithmetic number, because the mean of its divisors is an integer number (1288445746).

Almost surely, 2^28874827340 is an apocalyptic number.

28874827340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28874827340 is an abundant number, since it is smaller than the sum of its proper divisors (32970568468).

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

28874827340 is a wasteful number, since it uses less digits than its factorization.

28874827340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121578 (or 121576 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 53.

The spelling of 28874827340 in words is "twenty-eight billion, eight hundred seventy-four million, eight hundred twenty-seven thousand, three hundred forty".