128320283015627 has 4 divisors (see below), whose sum is σ = 128465936005176. Its totient is φ = 128174630026080.

The previous prime is 128320283015599. The next prime is 128320283015633. The reversal of 128320283015627 is 726510382023821.

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

It is a cyclic number.

It is not a de Polignac number, because 128320283015627 - 2⁸ = 128320283015371 is a prime.

It is a super-3 number, since 3×128320283015627³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128320283015647) 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, 72826493453 + ... + 72826495214.

It is an arithmetic number, because the mean of its divisors is an integer number (32116484001294).

Almost surely, 2^{128320283015627} is an apocalyptic number.

128320283015627 is a deficient number, since it is larger than the sum of its proper divisors (145652989549).

128320283015627 is an equidigital number, since it uses as much as digits as its factorization.

128320283015627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145652989548.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 128320283015627 in words is "one hundred twenty-eight trillion, three hundred twenty billion, two hundred eighty-three million, fifteen thousand, six hundred twenty-seven".