128540147286 has 8 divisors (see below), whose sum is σ = 257080294584. Its totient is φ = 42846715760.

The previous prime is 128540147273. The next prime is 128540147339. The reversal of 128540147286 is 682741045821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

128540147286 is an admirable number.

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, 10711678935 + ... + 10711678946.

It is an arithmetic number, because the mean of its divisors is an integer number (32135036823).

Almost surely, 2^128540147286 is an apocalyptic number.

128540147286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128540147286 is a wasteful number, since it uses less digits than its factorization.

128540147286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21423357886.

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 128540147286 in words is "one hundred twenty-eight billion, five hundred forty million, one hundred forty-seven thousand, two hundred eighty-six".