28011336192 has 160 divisors (see below), whose sum is σ = 94760899200. Its totient is φ = 8003211264.

The previous prime is 28011336173. The next prime is 28011336193. The reversal of 28011336192 is 29163311082.

28011336192 is a `hidden beast` number, since 2 + 8 + 0 + 1 + 1 + 33 + 619 + 2 = 666.

It is a super-2 number, since 2×28011336192² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28011336193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47967 + ... + 241502.

It is an arithmetic number, because the mean of its divisors is an integer number (592255620).

Almost surely, 2^28011336192 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 28011336192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47380449600).

28011336192 is an abundant number, since it is smaller than the sum of its proper divisors (66749563008).

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

28011336192 is an equidigital number, since it uses as much as digits as its factorization.

28011336192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289503 (or 289481 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 28011336192 in words is "twenty-eight billion, eleven million, three hundred thirty-six thousand, one hundred ninety-two".