1243010827688 has 24 divisors (see below), whose sum is σ = 2711158821450. Its totient is φ = 532718925984.

The previous prime is 1243010827687. The next prime is 1243010827697. The reversal of 1243010827688 is 8867280103421.

It can be written as a sum of positive squares in only one way, i.e., 1205125319524 + 37885508164 = 1097782^2 + 194642^2 .

It is not an unprimeable number, because it can be changed into a prime (1243010827687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1585472603 + ... + 1585473386.

Almost surely, 2^{1243010827688} is an apocalyptic number.

It is an amenable number.

1243010827688 is an abundant number, since it is smaller than the sum of its proper divisors (1468147993762).

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

1243010827688 is a wasteful number, since it uses less digits than its factorization.

1243010827688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170946009 (or 3170945998 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 1243010827688 in words is "one trillion, two hundred forty-three billion, ten million, eight hundred twenty-seven thousand, six hundred eighty-eight".