128835651670 has 16 divisors (see below), whose sum is σ = 252986370768. Its totient is φ = 46849327840.

The previous prime is 128835651641. The next prime is 128835651683. The reversal of 128835651670 is 76156538821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585616489 + ... + 585616708.

It is an arithmetic number, because the mean of its divisors is an integer number (15811648173).

Almost surely, 2^128835651670 is an apocalyptic number.

128835651670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128835651670 is a deficient number, since it is larger than the sum of its proper divisors (124150719098).

128835651670 is a wasteful number, since it uses less digits than its factorization.

128835651670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171233215.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 128835651670 in words is "one hundred twenty-eight billion, eight hundred thirty-five million, six hundred fifty-one thousand, six hundred seventy".