2042747243471 has 4 divisors (see below), whose sum is σ = 2228451538344. Its totient is φ = 1857042948600.

The previous prime is 2042747243441. The next prime is 2042747243479. The reversal of 2042747243471 is 1743427472402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2042747243471 - 2²² = 2042743049167 is a prime.

It is a super-3 number, since 3×2042747243471³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042747243479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92852147420 + ... + 92852147441.

It is an arithmetic number, because the mean of its divisors is an integer number (557112884586).

Almost surely, 2^{2042747243471} is an apocalyptic number.

2042747243471 is a deficient number, since it is larger than the sum of its proper divisors (185704294873).

2042747243471 is a wasteful number, since it uses less digits than its factorization.

2042747243471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185704294872.

The product of its (nonzero) digits is 2107392, while the sum is 47.

The spelling of 2042747243471 in words is "two trillion, forty-two billion, seven hundred forty-seven million, two hundred forty-three thousand, four hundred seventy-one".