128706630727038 has 32 divisors (see below), whose sum is σ = 316816321790976. Its totient is φ = 33944605905888.

The previous prime is 128706630726959. The next prime is 128706630727069. The reversal of 128706630727038 is 830727036607821.

128706630727038 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128706630727038² (a number of 29 digits) contains 22 as substring.

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, 117863214406 + ... + 117863215497.

It is an arithmetic number, because the mean of its divisors is an integer number (9900510055968).

Almost surely, 2^{128706630727038} is an apocalyptic number.

128706630727038 is an abundant number, since it is smaller than the sum of its proper divisors (188109691063938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128706630727038 is a wasteful number, since it uses less digits than its factorization.

128706630727038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235726429928.

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 128706630727038 in words is "one hundred twenty-eight trillion, seven hundred six billion, six hundred thirty million, seven hundred twenty-seven thousand, thirty-eight".