128381580253 has 4 divisors (see below), whose sum is σ = 129361592448. Its totient is φ = 127401568060.

The previous prime is 128381580221. The next prime is 128381580259. The reversal of 128381580253 is 352085183821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128381580253 - 2⁵ = 128381580221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128381580259) 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, 490005901 + ... + 490006162.

It is an arithmetic number, because the mean of its divisors is an integer number (32340398112).

Almost surely, 2^128381580253 is an apocalyptic number.

It is an amenable number.

128381580253 is a deficient number, since it is larger than the sum of its proper divisors (980012195).

128381580253 is an equidigital number, since it uses as much as digits as its factorization.

128381580253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980012194.

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 128381580253 in words is "one hundred twenty-eight billion, three hundred eighty-one million, five hundred eighty thousand, two hundred fifty-three".