1283187896952 has 128 divisors (see below), whose sum is σ = 3501397186560. Its totient is φ = 389508134400.

The previous prime is 1283187896933. The next prime is 1283187896989. The reversal of 1283187896952 is 2596987813821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18117753 + ... + 18188439.

It is an arithmetic number, because the mean of its divisors is an integer number (27354665520).

Almost surely, 2^{1283187896952} is an apocalyptic number.

1283187896952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283187896952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750698593280).

1283187896952 is an abundant number, since it is smaller than the sum of its proper divisors (2218209289608).

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

1283187896952 is a wasteful number, since it uses less digits than its factorization.

1283187896952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71493 (or 71489 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 69.

The spelling of 1283187896952 in words is "one trillion, two hundred eighty-three billion, one hundred eighty-seven million, eight hundred ninety-six thousand, nine hundred fifty-two".