28826348737152 has 128 divisors (see below), whose sum is σ = 76707504720000. Its totient is φ = 9591538581504.

The previous prime is 28826348737139. The next prime is 28826348737157. The reversal of 28826348737152 is 25173784362882.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×28826348737152² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28826348737157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623937349 + ... + 623983547.

It is an arithmetic number, because the mean of its divisors is an integer number (599277380625).

Almost surely, 2^{28826348737152} 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 28826348737152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38353752360000).

28826348737152 is an abundant number, since it is smaller than the sum of its proper divisors (47881155982848).

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

28826348737152 is a wasteful number, since it uses less digits than its factorization.

28826348737152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49098 (or 49086 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 66.

The spelling of 28826348737152 in words is "twenty-eight trillion, eight hundred twenty-six billion, three hundred forty-eight million, seven hundred thirty-seven thousand, one hundred fifty-two".