128707078706 has 32 divisors (see below), whose sum is σ = 204536404800. Its totient is φ = 60573312000.

The previous prime is 128707078699. The next prime is 128707078723. The reversal of 128707078706 is 607870707821.

It is a happy number.

It is a super-3 number, since 3×128707078706³ (a number of 34 digits) contains 333 as substring.

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, 3884546 + ... + 3917538.

It is an arithmetic number, because the mean of its divisors is an integer number (6391762650).

Almost surely, 2^128707078706 is an apocalyptic number.

128707078706 is a deficient number, since it is larger than the sum of its proper divisors (75829326094).

128707078706 is a wasteful number, since it uses less digits than its factorization.

128707078706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33674.

The product of its (nonzero) digits is 1843968, while the sum is 53.

The spelling of 128707078706 in words is "one hundred twenty-eight billion, seven hundred seven million, seventy-eight thousand, seven hundred six".