28164781408352 has 24 divisors (see below), whose sum is σ = 55450487793456. Its totient is φ = 14082117841792.

The previous prime is 28164781408349. The next prime is 28164781408391. The reversal of 28164781408352 is 25380418746182.

It is a junction number, because it is equal to n+sod(n) for n = 28164781408291 and 28164781408300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6844523 + ... + 10157610.

It is an arithmetic number, because the mean of its divisors is an integer number (2310436991394).

Almost surely, 2^{28164781408352} is an apocalyptic number.

It is an amenable number.

28164781408352 is a deficient number, since it is larger than the sum of its proper divisors (27285706385104).

28164781408352 is a wasteful number, since it uses less digits than its factorization.

28164781408352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17053910 (or 17053902 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 28164781408352 in words is "twenty-eight trillion, one hundred sixty-four billion, seven hundred eighty-one million, four hundred eight thousand, three hundred fifty-two".