28002729888 has 96 divisors (see below), whose sum is σ = 93342453120. Its totient is φ = 8000778240.

The previous prime is 28002729871. The next prime is 28002729893. The reversal of 28002729888 is 88892720082.

28002729888 is a `hidden beast` number, since 280 + 0 + 272 + 98 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2308993 + ... + 2321088.

It is an arithmetic number, because the mean of its divisors is an integer number (972317220).

Almost surely, 2^28002729888 is an apocalyptic number.

28002729888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28002729888 is an abundant number, since it is smaller than the sum of its proper divisors (65339723232).

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

28002729888 is a wasteful number, since it uses less digits than its factorization.

28002729888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630107 (or 4630093 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 28002729888 in words is "twenty-eight billion, two million, seven hundred twenty-nine thousand, eight hundred eighty-eight".