71244428434 has 16 divisors (see below), whose sum is σ = 108383956416. Its totient is φ = 35116555600.

The previous prime is 71244428417. The next prime is 71244428513. The reversal of 71244428434 is 43482444217.

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 7 ways as a sum of consecutive naturals, for example, 1556049 + ... + 1601179.

It is an arithmetic number, because the mean of its divisors is an integer number (6773997276).

Almost surely, 2^71244428434 is an apocalyptic number.

71244428434 is a deficient number, since it is larger than the sum of its proper divisors (37139527982).

71244428434 is a wasteful number, since it uses less digits than its factorization.

71244428434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56321.

The product of its digits is 688128, while the sum is 43.

The spelling of 71244428434 in words is "seventy-one billion, two hundred forty-four million, four hundred twenty-eight thousand, four hundred thirty-four".