71623863143 has 4 divisors (see below), whose sum is σ = 81855843600. Its totient is φ = 61391882688.

The previous prime is 71623863119. The next prime is 71623863163. The reversal of 71623863143 is 34136832617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34136832617 = 5381 ⋅6343957.

It is a cyclic number.

It is not a de Polignac number, because 71623863143 - 2¹⁸ = 71623600999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71623863094 and 71623863103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71623863163) 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, 5115990218 + ... + 5115990231.

It is an arithmetic number, because the mean of its divisors is an integer number (20463960900).

Almost surely, 2^71623863143 is an apocalyptic number.

71623863143 is a deficient number, since it is larger than the sum of its proper divisors (10231980457).

71623863143 is a wasteful number, since it uses less digits than its factorization.

71623863143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231980456.

The product of its digits is 435456, while the sum is 44.

The spelling of 71623863143 in words is "seventy-one billion, six hundred twenty-three million, eight hundred sixty-three thousand, one hundred forty-three".