128370479378 has 4 divisors (see below), whose sum is σ = 192555719070. Its totient is φ = 64185239688.

The previous prime is 128370479371. The next prime is 128370479381. The reversal of 128370479378 is 873974073821.

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., 92742784369 + 35627695009 = 304537^2 + 188753^2 .

It is not an unprimeable number, because it can be changed into a prime (128370479371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32092619843 + ... + 32092619846.

Almost surely, 2^128370479378 is an apocalyptic number.

128370479378 is a deficient number, since it is larger than the sum of its proper divisors (64185239692).

128370479378 is an equidigital number, since it uses as much as digits as its factorization.

128370479378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64185239691.

The product of its (nonzero) digits is 14224896, while the sum is 59.

The spelling of 128370479378 in words is "one hundred twenty-eight billion, three hundred seventy million, four hundred seventy-nine thousand, three hundred seventy-eight".