128771536237412 has 12 divisors (see below), whose sum is σ = 225379016689260. Its totient is φ = 64377531469056.

The previous prime is 128771536237391. The next prime is 128771536237429. The reversal of 128771536237412 is 214732635177821.

It can be written as a sum of positive squares in 2 ways, for example, as 2449581832996 + 126321954404416 = 1565114^2 + 11239304^2 .

It is a super-2 number, since 2×128771536237412² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

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, 2059127237 + ... + 2059189772.

It is an arithmetic number, because the mean of its divisors is an integer number (18781584724105).

Almost surely, 2^{128771536237412} is an apocalyptic number.

It is an amenable number.

128771536237412 is a deficient number, since it is larger than the sum of its proper divisors (96607480451848).

128771536237412 is a wasteful number, since it uses less digits than its factorization.

128771536237412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118324830 (or 4118324828 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 59.

The spelling of 128771536237412 in words is "one hundred twenty-eight trillion, seven hundred seventy-one billion, five hundred thirty-six million, two hundred thirty-seven thousand, four hundred twelve".