71043347420 has 24 divisors (see below), whose sum is σ = 151234745424. Its totient is φ = 28028059776.

The previous prime is 71043347387. The next prime is 71043347443. The reversal of 71043347420 is 2474334017.

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 7 ways as a sum of consecutive naturals, for example, 24328454 + ... + 24331373.

It is an arithmetic number, because the mean of its divisors is an integer number (6301447726).

Almost surely, 2^71043347420 is an apocalyptic number.

It is an amenable number.

71043347420 is an abundant number, since it is smaller than the sum of its proper divisors (80191398004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71043347420 is a wasteful number, since it uses less digits than its factorization.

71043347420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48659909 (or 48659907 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 71043347420 in words is "seventy-one billion, forty-three million, three hundred forty-seven thousand, four hundred twenty".