128788001378 has 16 divisors (see below), whose sum is σ = 208845409920. Its totient is φ = 59356062576.

The previous prime is 128788001333. The next prime is 128788001387. The reversal of 128788001378 is 873100887821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45798026 + ... + 45800837.

It is an arithmetic number, because the mean of its divisors is an integer number (13052838120).

Almost surely, 2^128788001378 is an apocalyptic number.

128788001378 is a deficient number, since it is larger than the sum of its proper divisors (80057408542).

128788001378 is a wasteful number, since it uses less digits than its factorization.

128788001378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91598921.

The product of its (nonzero) digits is 1204224, while the sum is 53.

The spelling of 128788001378 in words is "one hundred twenty-eight billion, seven hundred eighty-eight million, one thousand, three hundred seventy-eight".