1288242954250 has 64 divisors (see below), whose sum is σ = 2901161952000. Its totient is φ = 418436798400.

The previous prime is 1288242954203. The next prime is 1288242954259. The reversal of 1288242954250 is 524592428821.

It is not an unprimeable number, because it can be changed into a prime (1288242954259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19338825 + ... + 19405324.

It is an arithmetic number, because the mean of its divisors is an integer number (45330655500).

Almost surely, 2^{1288242954250} is an apocalyptic number.

1288242954250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1288242954250 is an abundant number, since it is smaller than the sum of its proper divisors (1612918997750).

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

1288242954250 is a wasteful number, since it uses less digits than its factorization.

1288242954250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38744192 (or 38744182 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 1288242954250 in words is "one trillion, two hundred eighty-eight billion, two hundred forty-two million, nine hundred fifty-four thousand, two hundred fifty".