7745424143 has 4 divisors (see below), whose sum is σ = 7747230960. Its totient is φ = 7743617328.

The previous prime is 7745424131. The next prime is 7745424199. The reversal of 7745424143 is 3414245477.

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 7745424143 - 2¹⁴ = 7745407759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7745424143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7745424343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896963 + ... + 905556.

It is an arithmetic number, because the mean of its divisors is an integer number (1936807740).

Almost surely, 2^7745424143 is an apocalyptic number.

7745424143 is a deficient number, since it is larger than the sum of its proper divisors (1806817).

7745424143 is a wasteful number, since it uses less digits than its factorization.

7745424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806816.

The product of its digits is 376320, while the sum is 41.

The square root of 7745424143 is about 88008.0913496026. The cubic root of 7745424143 is about 1978.5562497522.

The spelling of 7745424143 in words is "seven billion, seven hundred forty-five million, four hundred twenty-four thousand, one hundred forty-three".