28986273792 has 390 divisors, whose sum is σ = 100784095368. Its totient is φ = 8277147648.

The previous prime is 28986273781. The next prime is 28986273829. The reversal of 28986273792 is 29737268982.

28986273792 is a `hidden beast` number, since 289 + 86 + 273 + 7 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 16256133 + ... + 16257915.

Almost surely, 2^28986273792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28986273792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50392047684).

28986273792 is an abundant number, since it is smaller than the sum of its proper divisors (71797821576).

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

28986273792 is an equidigital number, since it uses as much as digits as its factorization.

28986273792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1795 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 28986273792 in words is "twenty-eight billion, nine hundred eighty-six million, two hundred seventy-three thousand, seven hundred ninety-two".