71242533998 has 32 divisors (see below), whose sum is σ = 116828345088. Its totient is φ = 32436518400.

The previous prime is 71242533959. The next prime is 71242534003. The reversal of 71242533998 is 89933524217.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8298068 + ... + 8306648.

It is an arithmetic number, because the mean of its divisors is an integer number (3650885784).

Almost surely, 2^71242533998 is an apocalyptic number.

71242533998 is a deficient number, since it is larger than the sum of its proper divisors (45585811090).

71242533998 is a wasteful number, since it uses less digits than its factorization.

71242533998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16508.

The product of its digits is 3265920, while the sum is 53.

The spelling of 71242533998 in words is "seventy-one billion, two hundred forty-two million, five hundred thirty-three thousand, nine hundred ninety-eight".