28154888213472 has 72 divisors (see below), whose sum is σ = 83030850911736. Its totient is φ = 9384962735232.

The previous prime is 28154888213401. The next prime is 28154888213527. The reversal of 28154888213472 is 27431288845182.

28154888213472 is a `hidden beast` number, since 2 + 8 + 1 + 5 + 4 + 88 + 82 + 1 + 3 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1810363123 + ... + 1810378674.

It is an arithmetic number, because the mean of its divisors is an integer number (1153206262663).

Almost surely, 2^{28154888213472} is an apocalyptic number.

It is an amenable number.

28154888213472 is an abundant number, since it is smaller than the sum of its proper divisors (54875962698264).

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

28154888213472 is an equidigital number, since it uses as much as digits as its factorization.

28154888213472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620741822 (or 3620741802 counting only the distinct ones).

The product of its digits is 55050240, while the sum is 63.

The spelling of 28154888213472 in words is "twenty-eight trillion, one hundred fifty-four billion, eight hundred eighty-eight million, two hundred thirteen thousand, four hundred seventy-two".