28926426368 has 216 divisors, whose sum is σ = 70352190720. Its totient is φ = 11821178880.

The previous prime is 28926426349. The next prime is 28926426377. The reversal of 28926426368 is 86362462982.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28386563 + ... + 28387581.

Almost surely, 2^28926426368 is an apocalyptic number.

28926426368 is a gapful number since it is divisible by the number (28) 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 28926426368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35176095360).

28926426368 is an abundant number, since it is smaller than the sum of its proper divisors (41425764352).

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

28926426368 is a wasteful number, since it uses less digits than its factorization.

28926426368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1132 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 56.

The spelling of 28926426368 in words is "twenty-eight billion, nine hundred twenty-six million, four hundred twenty-six thousand, three hundred sixty-eight".