1142894387643 has 8 divisors (see below), whose sum is σ = 1525955278848. Its totient is φ = 760881544104.

The previous prime is 1142894387641. The next prime is 1142894387651. The reversal of 1142894387643 is 3467834982411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1142894387643 - 2¹ = 1142894387641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142894387641) 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, 262009371 + ... + 262013732.

It is an arithmetic number, because the mean of its divisors is an integer number (190744409856).

Almost surely, 2^{1142894387643} is an apocalyptic number.

1142894387643 is a deficient number, since it is larger than the sum of its proper divisors (383060891205).

1142894387643 is an equidigital number, since it uses as much as digits as its factorization.

1142894387643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524023833.

The product of its digits is 27869184, while the sum is 60.

The spelling of 1142894387643 in words is "one trillion, one hundred forty-two billion, eight hundred ninety-four million, three hundred eighty-seven thousand, six hundred forty-three".