1288742195312 has 40 divisors (see below), whose sum is σ = 2933465631600. Its totient is φ = 540730990080.

The previous prime is 1288742195309. The next prime is 1288742195317. The reversal of 1288742195312 is 2135912478821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288742195317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281628437 + ... + 281633012.

It is an arithmetic number, because the mean of its divisors is an integer number (73336640790).

Almost surely, 2^{1288742195312} is an apocalyptic number.

It is an amenable number.

1288742195312 is an abundant number, since it is smaller than the sum of its proper divisors (1644723436288).

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

1288742195312 is a wasteful number, since it uses less digits than its factorization.

1288742195312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563261481 (or 563261475 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 53.

The spelling of 1288742195312 in words is "one trillion, two hundred eighty-eight billion, seven hundred forty-two million, one hundred ninety-five thousand, three hundred twelve".