1287337137152 has 88 divisors (see below), whose sum is σ = 2819018877312. Its totient is φ = 582723993600.

The previous prime is 1287337137041. The next prime is 1287337137181. The reversal of 1287337137152 is 2517317337821.

It is a tau number, because it is divible by the number of its divisors (88).

It is a super-2 number, since 2×1287337137152² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1287337137152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2477513 + ... + 2951735.

It is an arithmetic number, because the mean of its divisors is an integer number (32034305424).

Almost surely, 2^{1287337137152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1287337137152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409509438656).

1287337137152 is an abundant number, since it is smaller than the sum of its proper divisors (1531681740160).

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

1287337137152 is a wasteful number, since it uses less digits than its factorization.

1287337137152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474495 (or 474477 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 50.

The spelling of 1287337137152 in words is "one trillion, two hundred eighty-seven billion, three hundred thirty-seven million, one hundred thirty-seven thousand, one hundred fifty-two".