128761611292118 has 32 divisors (see below), whose sum is σ = 220827056744448. Its totient is φ = 55160332718400.

The previous prime is 128761611292063. The next prime is 128761611292151. The reversal of 128761611292118 is 811292116167821.

It is a congruent number.

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, 1659025133 + ... + 1659102743.

It is an arithmetic number, because the mean of its divisors is an integer number (6900845523264).

Almost surely, 2^{128761611292118} is an apocalyptic number.

128761611292118 is a deficient number, since it is larger than the sum of its proper divisors (92065445452330).

128761611292118 is a wasteful number, since it uses less digits than its factorization.

128761611292118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125948.

The product of its digits is 1161216, while the sum is 56.

The spelling of 128761611292118 in words is "one hundred twenty-eight trillion, seven hundred sixty-one billion, six hundred eleven million, two hundred ninety-two thousand, one hundred eighteen".