128036823346738 has 8 divisors (see below), whose sum is σ = 192055376249388. Its totient is φ = 64018364596944.

The previous prime is 128036823346723. The next prime is 128036823346753. The reversal of 128036823346738 is 837643328630821.

It is an interprime number because it is at equal distance from previous prime (128036823346723) and next prime (128036823346753).

It can be written as a sum of positive squares in 2 ways, for example, as 119412070221889 + 8624753124849 = 10927583^2 + 2936793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×128036823346738³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128036823346738.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20034181 + ... + 25640632.

Almost surely, 2^{128036823346738} is an apocalyptic number.

128036823346738 is a deficient number, since it is larger than the sum of its proper divisors (64018552902650).

128036823346738 is a wasteful number, since it uses less digits than its factorization.

128036823346738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47076428.

The product of its (nonzero) digits is 167215104, while the sum is 64.

The spelling of 128036823346738 in words is "one hundred twenty-eight trillion, thirty-six billion, eight hundred twenty-three million, three hundred forty-six thousand, seven hundred thirty-eight".