71242534015 has 32 divisors (see below), whose sum is σ = 92761972416. Its totient is φ = 52324546560.

The previous prime is 71242534009. The next prime is 71242534037. The reversal of 71242534015 is 51043524217.

It is not a de Polignac number, because 71242534015 - 2²⁹ = 70705663103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 733660 + ... + 825070.

It is an arithmetic number, because the mean of its divisors is an integer number (2898811638).

Almost surely, 2^71242534015 is an apocalyptic number.

71242534015 is a deficient number, since it is larger than the sum of its proper divisors (21519438401).

71242534015 is a wasteful number, since it uses less digits than its factorization.

71242534015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91659.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 71242534015 in words is "seventy-one billion, two hundred forty-two million, five hundred thirty-four thousand, fifteen".