28136526671344 has 320 divisors, whose sum is σ = 69581866475520. Its totient is φ = 10721807585280.

The previous prime is 28136526671303. The next prime is 28136526671347. The reversal of 28136526671344 is 44317662563182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28136526671347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10088391102 + ... + 10088393890.

It is an arithmetic number, because the mean of its divisors is an integer number (217443332736).

Almost surely, 2^{28136526671344} 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 28136526671344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34790933237760).

28136526671344 is an abundant number, since it is smaller than the sum of its proper divisors (41445339804176).

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

28136526671344 is a wasteful number, since it uses less digits than its factorization.

28136526671344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808 (or 3802 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 58.

The spelling of 28136526671344 in words is "twenty-eight trillion, one hundred thirty-six billion, five hundred twenty-six million, six hundred seventy-one thousand, three hundred forty-four".