28874449625472 has 96 divisors (see below), whose sum is σ = 90642803551560. Its totient is φ = 8749833216000.

The previous prime is 28874449625467. The next prime is 28874449625473. The reversal of 28874449625472 is 27452694447882.

28874449625472 is a `hidden beast` number, since 2 + 8 + 8 + 7 + 4 + 44 + 96 + 25 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 28874449625472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874449625473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1139288529 + ... + 1139313872.

Almost surely, 2^{28874449625472} is an apocalyptic number.

28874449625472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28874449625472 is an abundant number, since it is smaller than the sum of its proper divisors (61768353926088).

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

28874449625472 is a wasteful number, since it uses less digits than its factorization.

28874449625472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278602432 (or 2278602417 counting only the distinct ones).

The product of its digits is 1734082560, while the sum is 72.

The spelling of 28874449625472 in words is "twenty-eight trillion, eight hundred seventy-four billion, four hundred forty-nine million, six hundred twenty-five thousand, four hundred seventy-two".