28027231740 has 96 divisors (see below), whose sum is σ = 91785120000. Its totient is φ = 7080561216.

The previous prime is 28027231669. The next prime is 28027231763. The reversal of 28027231740 is 4713272082.

28027231740 is a `hidden beast` number, since 280 + 27 + 2 + 317 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 28027231695 and 28027231704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1355590 + ... + 1376109.

It is an arithmetic number, because the mean of its divisors is an integer number (956095000).

Almost surely, 2^28027231740 is an apocalyptic number.

28027231740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28027231740 is an abundant number, since it is smaller than the sum of its proper divisors (63757888260).

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

28027231740 is a wasteful number, since it uses less digits than its factorization.

28027231740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731736 (or 2731728 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 28027231740 in words is "twenty-eight billion, twenty-seven million, two hundred thirty-one thousand, seven hundred forty".