71351890140 has 24 divisors (see below), whose sum is σ = 199785292560. Its totient is φ = 19027170688.

The previous prime is 71351890133. The next prime is 71351890171. The reversal of 71351890140 is 4109815317.

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 7 ways as a sum of consecutive naturals, for example, 594599025 + ... + 594599144.

It is an arithmetic number, because the mean of its divisors is an integer number (8324387190).

Almost surely, 2^71351890140 is an apocalyptic number.

It is an amenable number.

71351890140 is an abundant number, since it is smaller than the sum of its proper divisors (128433402420).

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

71351890140 is a wasteful number, since it uses less digits than its factorization.

71351890140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189198181 (or 1189198179 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 71351890140 in words is "seventy-one billion, three hundred fifty-one million, eight hundred ninety thousand, one hundred forty".