1289385960896 has 56 divisors (see below), whose sum is σ = 2791390458864. Its totient is φ = 586050324480.

The previous prime is 1289385960871. The next prime is 1289385960899. The reversal of 1289385960896 is 6980695839821.

It is a super-2 number, since 2×1289385960896² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289385960899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15046106 + ... + 15131558.

It is an arithmetic number, because the mean of its divisors is an integer number (49846258194).

Almost surely, 2^{1289385960896} is an apocalyptic number.

1289385960896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1289385960896 is an abundant number, since it is smaller than the sum of its proper divisors (1502004497968).

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

1289385960896 is a wasteful number, since it uses less digits than its factorization.

1289385960896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106909 (or 106899 counting only the distinct ones).

The product of its (nonzero) digits is 403107840, while the sum is 74.

The spelling of 1289385960896 in words is "one trillion, two hundred eighty-nine billion, three hundred eighty-five million, nine hundred sixty thousand, eight hundred ninety-six".