28118119680 has 1440 divisors, whose sum is σ = 126930633984. Its totient is φ = 5796790272.

The previous prime is 28118119669. The next prime is 28118119693. The reversal of 28118119680 is 8691181182.

28118119680 is a `hidden beast` number, since 281 + 181 + 196 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 530530534 + ... + 530530586.

Almost surely, 2^28118119680 is an apocalyptic number.

28118119680 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 28118119680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63465316992).

28118119680 is an abundant number, since it is smaller than the sum of its proper divisors (98812514304).

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

28118119680 is a wasteful number, since it uses less digits than its factorization.

28118119680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 45.

The spelling of 28118119680 in words is "twenty-eight billion, one hundred eighteen million, one hundred nineteen thousand, six hundred eighty".