71534703320 has 64 divisors (see below), whose sum is σ = 166413096000. Its totient is φ = 27653598720.

The previous prime is 71534703319. The next prime is 71534703407. The reversal of 71534703320 is 2330743517.

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 15 ways as a sum of consecutive naturals, for example, 58325 + ... + 382715.

It is an arithmetic number, because the mean of its divisors is an integer number (2600204625).

Almost surely, 2^71534703320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71534703320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83206548000).

71534703320 is an abundant number, since it is smaller than the sum of its proper divisors (94878392680).

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

71534703320 is a wasteful number, since it uses less digits than its factorization.

71534703320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324588 (or 324584 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 71534703320 in words is "seventy-one billion, five hundred thirty-four million, seven hundred three thousand, three hundred twenty".