28573715721408 has 224 divisors, whose sum is σ = 88823806697472. Its totient is φ = 7992152064000.

The previous prime is 28573715721407. The next prime is 28573715721559. The reversal of 28573715721408 is 80412751737582.

It is not an unprimeable number, because it can be changed into a prime (28573715721407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861909633 + ... + 861942783.

It is an arithmetic number, because the mean of its divisors is an integer number (396534851328).

Almost surely, 2^{28573715721408} 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 28573715721408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44411903348736).

28573715721408 is an abundant number, since it is smaller than the sum of its proper divisors (60250090976064).

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

28573715721408 is a wasteful number, since it uses less digits than its factorization.

28573715721408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64583 (or 64573 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 60.

The spelling of 28573715721408 in words is "twenty-eight trillion, five hundred seventy-three billion, seven hundred fifteen million, seven hundred twenty-one thousand, four hundred eight".