128077710154 has 4 divisors (see below), whose sum is σ = 192116565234. Its totient is φ = 64038855076.

The previous prime is 128077710151. The next prime is 128077710179. The reversal of 128077710154 is 451017770821.

128077710154 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 119553435225 + 8524274929 = 345765^2 + 92327^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 128077710154.

It is not an unprimeable number, because it can be changed into a prime (128077710151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32019427537 + ... + 32019427540.

Almost surely, 2^128077710154 is an apocalyptic number.

128077710154 is a deficient number, since it is larger than the sum of its proper divisors (64038855080).

128077710154 is an equidigital number, since it uses as much as digits as its factorization.

128077710154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64038855079.

The product of its (nonzero) digits is 109760, while the sum is 43.

The spelling of 128077710154 in words is "one hundred twenty-eight billion, seventy-seven million, seven hundred ten thousand, one hundred fifty-four".