71349320408 has 16 divisors (see below), whose sum is σ = 133894237560. Its totient is φ = 35644190400.

The previous prime is 71349320369. The next prime is 71349320443. The reversal of 71349320408 is 80402394317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3798773 + ... + 3817508.

Almost surely, 2^71349320408 is an apocalyptic number.

It is an amenable number.

71349320408 is a deficient number, since it is larger than the sum of its proper divisors (62544917152).

71349320408 is a wasteful number, since it uses less digits than its factorization.

71349320408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7617458 (or 7617454 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 71349320408 in words is "seventy-one billion, three hundred forty-nine million, three hundred twenty thousand, four hundred eight".