1288944730234 has 16 divisors (see below), whose sum is σ = 2209727487168. Its totient is φ = 552377896992.

The previous prime is 1288944730217. The next prime is 1288944730243. The reversal of 1288944730234 is 4320374498821.

It is a super-2 number, since 2×1288944730234² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1950787 + ... + 2526550.

It is an arithmetic number, because the mean of its divisors is an integer number (138107967948).

Almost surely, 2^{1288944730234} is an apocalyptic number.

1288944730234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1288944730234 is a deficient number, since it is larger than the sum of its proper divisors (920782756934).

1288944730234 is a wasteful number, since it uses less digits than its factorization.

1288944730234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497909.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 1288944730234 in words is "one trillion, two hundred eighty-eight billion, nine hundred forty-four million, seven hundred thirty thousand, two hundred thirty-four".