128850637851386 has 32 divisors (see below), whose sum is σ = 221944673272320. Its totient is φ = 55485672894000.

The previous prime is 128850637851349. The next prime is 128850637851427. The reversal of 128850637851386 is 683158736058821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117172811 + ... + 118267361.

It is an arithmetic number, because the mean of its divisors is an integer number (6935771039760).

Almost surely, 2^{128850637851386} is an apocalyptic number.

128850637851386 is a deficient number, since it is larger than the sum of its proper divisors (93094035420934).

128850637851386 is a wasteful number, since it uses less digits than its factorization.

128850637851386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376210.

The product of its (nonzero) digits is 464486400, while the sum is 71.

The spelling of 128850637851386 in words is "one hundred twenty-eight trillion, eight hundred fifty billion, six hundred thirty-seven million, eight hundred fifty-one thousand, three hundred eighty-six".