1328181572970 has 192 divisors, whose sum is σ = 4224793337856. Its totient is φ = 293791199040.

The previous prime is 1328181572929. The next prime is 1328181573013. The reversal of 1328181572970 is 792751818231.

1328181572970 is a `hidden beast` number, since 1 + 328 + 18 + 15 + 7 + 297 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 732084 + ... + 1786703.

It is an arithmetic number, because the mean of its divisors is an integer number (22004131968).

Almost surely, 2^{1328181572970} is an apocalyptic number.

1328181572970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328181572970 is an abundant number, since it is smaller than the sum of its proper divisors (2896611764886).

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

1328181572970 is a wasteful number, since it uses less digits than its factorization.

1328181572970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518847 (or 2518835 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 1328181572970 in words is "one trillion, three hundred twenty-eight billion, one hundred eighty-one million, five hundred seventy-two thousand, nine hundred seventy".