128323260952320 has 288 divisors, whose sum is σ = 483488934727680. Its totient is φ = 28384868597760.

The previous prime is 128323260952259. The next prime is 128323260952387. The reversal of 128323260952320 is 23259062323821.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 128323260952320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76165605 + ... + 77832164.

It is an arithmetic number, because the mean of its divisors is an integer number (1678781023360).

Almost surely, 2^{128323260952320} is an apocalyptic number.

128323260952320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128323260952320 is an abundant number, since it is smaller than the sum of its proper divisors (355165673775360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128323260952320 is a wasteful number, since it uses less digits than its factorization.

128323260952320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153997831 (or 153997817 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 128323260952320 in words is "one hundred twenty-eight trillion, three hundred twenty-three billion, two hundred sixty million, nine hundred fifty-two thousand, three hundred twenty".