28157493000384 has 168 divisors, whose sum is σ = 91081546330320. Its totient is φ = 8238346905600.

The previous prime is 28157493000331. The next prime is 28157493000421. The reversal of 28157493000384 is 48300039475182.

It is a happy number.

28157493000384 is a `hidden beast` number, since 2 + 8 + 1 + 574 + 9 + 30 + 0 + 0 + 38 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28157493000384.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76437787 + ... + 76805274.

It is an arithmetic number, because the mean of its divisors is an integer number (542152061490).

Almost surely, 2^{28157493000384} is an apocalyptic number.

28157493000384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28157493000384 is an abundant number, since it is smaller than the sum of its proper divisors (62924053329936).

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

28157493000384 is a wasteful number, since it uses less digits than its factorization.

28157493000384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153243119 (or 153243106 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 28157493000384 in words is "twenty-eight trillion, one hundred fifty-seven billion, four hundred ninety-three million, three hundred eighty-four", and thus it is an aban number.