28551892416 has 224 divisors, whose sum is σ = 79390402560. Its totient is φ = 9047199744.

The previous prime is 28551892399. The next prime is 28551892423. The reversal of 28551892416 is 61429815582.

It is a super-3 number, since 3×28551892416³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106140730 + ... + 106140998.

It is an arithmetic number, because the mean of its divisors is an integer number (354421440).

Almost surely, 2^28551892416 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 28551892416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39695201280).

28551892416 is an abundant number, since it is smaller than the sum of its proper divisors (50838510144).

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

28551892416 is a wasteful number, since it uses less digits than its factorization.

28551892416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 601 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 51.

The spelling of 28551892416 in words is "twenty-eight billion, five hundred fifty-one million, eight hundred ninety-two thousand, four hundred sixteen".