71442183793 has 4 divisors (see below), whose sum is σ = 71442875620. Its totient is φ = 71441491968.

The previous prime is 71442183781. The next prime is 71442183797. The reversal of 71442183793 is 39738124417.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 57872962624 + 13569221169 = 240568^2 + 116487^2 .

It is a cyclic number.

It is not a de Polignac number, because 71442183793 - 2¹³ = 71442175601 is a prime.

It is a super-2 number, since 2×71442183793² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71442183797) 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, 156408 + ... + 409081.

It is an arithmetic number, because the mean of its divisors is an integer number (17860718905).

Almost surely, 2^71442183793 is an apocalyptic number.

It is an amenable number.

71442183793 is a deficient number, since it is larger than the sum of its proper divisors (691827).

71442183793 is a wasteful number, since it uses less digits than its factorization.

71442183793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691826.

The product of its digits is 1016064, while the sum is 49.

The spelling of 71442183793 in words is "seventy-one billion, four hundred forty-two million, one hundred eighty-three thousand, seven hundred ninety-three".