28936527840 has 576 divisors, whose sum is σ = 111994384320. Its totient is φ = 6741688320.

The previous prime is 28936527821. The next prime is 28936527859. The reversal of 28936527840 is 4872563982.

28936527840 is a `hidden beast` number, since 2 + 8 + 9 + 36 + 527 + 84 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (28936527821) and next prime (28936527859).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56849506 + ... + 56850014.

It is an arithmetic number, because the mean of its divisors is an integer number (194434695).

Almost surely, 2^28936527840 is an apocalyptic number.

28936527840 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 28936527840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55997192160).

28936527840 is an abundant number, since it is smaller than the sum of its proper divisors (83057856480).

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

28936527840 is a wasteful number, since it uses less digits than its factorization.

28936527840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 28936527840 in words is "twenty-eight billion, nine hundred thirty-six million, five hundred twenty-seven thousand, eight hundred forty".