70128686696 has 16 divisors (see below), whose sum is σ = 131523195300. Its totient is φ = 35055834624.

The previous prime is 70128686689. The next prime is 70128686717. The reversal of 70128686696 is 69668682107.

It can be written as a sum of positive squares in 2 ways, for example, as 64763124196 + 5365562500 = 254486^2 + 73250^2 .

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, 1028495 + ... + 1094558.

Almost surely, 2^70128686696 is an apocalyptic number.

It is an amenable number.

70128686696 is a deficient number, since it is larger than the sum of its proper divisors (61394508604).

70128686696 is a wasteful number, since it uses less digits than its factorization.

70128686696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127188 (or 2127184 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 70128686696 in words is "seventy billion, one hundred twenty-eight million, six hundred eighty-six thousand, six hundred ninety-six".