28941057617472 has 504 divisors, whose sum is σ = 113368152223872. Its totient is φ = 6938913945600.

The previous prime is 28941057617471. The next prime is 28941057617501. The reversal of 28941057617472 is 27471675014982.

28941057617472 is a `hidden beast` number, since 2 + 8 + 9 + 4 + 1 + 0 + 5 + 7 + 617 + 4 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (28941057617471) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 450697 + ... + 7621367.

It is an arithmetic number, because the mean of its divisors is an integer number (224936809968).

Almost surely, 2^{28941057617472} is an apocalyptic number.

28941057617472 is a gapful number since it is divisible by the number (22) 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 28941057617472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56684076111936).

28941057617472 is an abundant number, since it is smaller than the sum of its proper divisors (84427094606400).

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

28941057617472 is a wasteful number, since it uses less digits than its factorization.

28941057617472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7170727 (or 7170707 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 63.

The spelling of 28941057617472 in words is "twenty-eight trillion, nine hundred forty-one billion, fifty-seven million, six hundred seventeen thousand, four hundred seventy-two".