1142868685840 has 40 divisors (see below), whose sum is σ = 3036765366720. Its totient is φ = 391840692096.

The previous prime is 1142868685823. The next prime is 1142868685859. The reversal of 1142868685840 is 485868682411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1142868685840² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020417910 + ... + 1020419029.

It is an arithmetic number, because the mean of its divisors is an integer number (75919134168).

Almost surely, 2^{1142868685840} is an apocalyptic number.

1142868685840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142868685840 is an abundant number, since it is smaller than the sum of its proper divisors (1893896680880).

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

1142868685840 is a wasteful number, since it uses less digits than its factorization.

1142868685840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040836959 (or 2040836953 counting only the distinct ones).

The product of its (nonzero) digits is 23592960, while the sum is 61.

The spelling of 1142868685840 in words is "one trillion, one hundred forty-two billion, eight hundred sixty-eight million, six hundred eighty-five thousand, eight hundred forty".