109128578037 has 4 divisors (see below), whose sum is σ = 145504770720. Its totient is φ = 72752385356.

The previous prime is 109128577997. The next prime is 109128578047. The reversal of 109128578037 is 730875821901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109128578037 - 2¹⁰ = 109128577013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109128578047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18188096337 + ... + 18188096342.

It is an arithmetic number, because the mean of its divisors is an integer number (36376192680).

Almost surely, 2^109128578037 is an apocalyptic number.

It is an amenable number.

109128578037 is a deficient number, since it is larger than the sum of its proper divisors (36376192683).

109128578037 is an equidigital number, since it uses as much as digits as its factorization.

109128578037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36376192682.

The product of its (nonzero) digits is 846720, while the sum is 51.

The spelling of 109128578037 in words is "one hundred nine billion, one hundred twenty-eight million, five hundred seventy-eight thousand, thirty-seven".