28042949160 has 192 divisors, whose sum is σ = 93677126400. Its totient is φ = 7272764928.

The previous prime is 28042949149. The next prime is 28042949173. The reversal of 28042949160 is 6194924082.

28042949160 is a `hidden beast` number, since 2 + 80 + 4 + 29 + 491 + 60 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1898122 + ... + 1912838.

It is an arithmetic number, because the mean of its divisors is an integer number (487901700).

Almost surely, 2^28042949160 is an apocalyptic number.

28042949160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28042949160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46838563200).

28042949160 is an abundant number, since it is smaller than the sum of its proper divisors (65634177240).

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

28042949160 is a wasteful number, since it uses less digits than its factorization.

28042949160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14880 (or 14873 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 28042949160 in words is "twenty-eight billion, forty-two million, nine hundred forty-nine thousand, one hundred sixty".