71824287023 has 4 divisors (see below), whose sum is σ = 73041647880. Its totient is φ = 70606926168.

The previous prime is 71824287011. The next prime is 71824287049. The reversal of 71824287023 is 32078242817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32078242817 = 2969 ⋅10804393.

It is a cyclic number.

It is not a de Polignac number, because 71824287023 - 2¹⁰ = 71824285999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71824283023) 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, 608680340 + ... + 608680457.

It is an arithmetic number, because the mean of its divisors is an integer number (18260411970).

Almost surely, 2^71824287023 is an apocalyptic number.

71824287023 is a deficient number, since it is larger than the sum of its proper divisors (1217360857).

71824287023 is a wasteful number, since it uses less digits than its factorization.

71824287023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217360856.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 71824287023 in words is "seventy-one billion, eight hundred twenty-four million, two hundred eighty-seven thousand, twenty-three".