1327570989381 has 80 divisors (see below), whose sum is σ = 2443926373504. Its totient is φ = 699364388736.

The previous prime is 1327570989359. The next prime is 1327570989401. The reversal of 1327570989381 is 1839890757231.

1327570989381 is a `hidden beast` number, since 1 + 3 + 27 + 570 + 9 + 8 + 9 + 38 + 1 = 666.

It is not a de Polignac number, because 1327570989381 - 2¹⁴ = 1327570972997 is a prime.

It is a super-2 number, since 2×1327570989381² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327570989781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5686551 + ... + 5915403.

Almost surely, 2^{1327570989381} is an apocalyptic number.

It is an amenable number.

1327570989381 is a deficient number, since it is larger than the sum of its proper divisors (1116355384123).

1327570989381 is a wasteful number, since it uses less digits than its factorization.

1327570989381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229672 (or 229663 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 1327570989381 in words is "one trillion, three hundred twenty-seven billion, five hundred seventy million, nine hundred eighty-nine thousand, three hundred eighty-one".