71429007523 has 4 divisors (see below), whose sum is σ = 73733169088. Its totient is φ = 69124845960.

The previous prime is 71429007479. The next prime is 71429007527. The reversal of 71429007523 is 32570092417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32570092417 = 113749 ⋅286333.

It is a cyclic number.

It is not a de Polignac number, because 71429007523 - 2³³ = 62839072931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71429007527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152080736 + ... + 1152080797.

It is an arithmetic number, because the mean of its divisors is an integer number (18433292272).

Almost surely, 2^71429007523 is an apocalyptic number.

71429007523 is a deficient number, since it is larger than the sum of its proper divisors (2304161565).

71429007523 is a wasteful number, since it uses less digits than its factorization.

71429007523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304161564.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 71429007523 in words is "seventy-one billion, four hundred twenty-nine million, seven thousand, five hundred twenty-three".