1142808617844 has 36 divisors (see below), whose sum is σ = 2981952238720. Its totient is φ = 368647940880.

The previous prime is 1142808617779. The next prime is 1142808617849. The reversal of 1142808617844 is 4487168082411.

1142808617844 is a `hidden beast` number, since 1 + 1 + 428 + 0 + 8 + 6 + 178 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142808617849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512009914 + ... + 512012145.

Almost surely, 2^{1142808617844} is an apocalyptic number.

It is an amenable number.

1142808617844 is an abundant number, since it is smaller than the sum of its proper divisors (1839143620876).

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

1142808617844 is a wasteful number, since it uses less digits than its factorization.

1142808617844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024022100 (or 1024022095 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 54.

The spelling of 1142808617844 in words is "one trillion, one hundred forty-two billion, eight hundred eight million, six hundred seventeen thousand, eight hundred forty-four".