28888426693056 has 224 divisors, whose sum is σ = 93090449571840. Its totient is φ = 7726995201024.

The previous prime is 28888426693043. The next prime is 28888426693057. The reversal of 28888426693056 is 65039662488882.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28888426693057) by changing a digit.

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, 8489026 + ... + 11394753.

It is an arithmetic number, because the mean of its divisors is an integer number (415582364160).

Almost surely, 2^{28888426693056} is an apocalyptic number.

It is an amenable number.

28888426693056 is an abundant number, since it is smaller than the sum of its proper divisors (64202022878784).

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

28888426693056 is a wasteful number, since it uses less digits than its factorization.

28888426693056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19883871 (or 19883861 counting only the distinct ones).

The product of its (nonzero) digits is 1911029760, while the sum is 75.

The spelling of 28888426693056 in words is "twenty-eight trillion, eight hundred eighty-eight billion, four hundred twenty-six million, six hundred ninety-three thousand, fifty-six".