71444358480 has 160 divisors (see below), whose sum is σ = 243751006080. Its totient is φ = 17166499840.

The previous prime is 71444358473. The next prime is 71444358569. The reversal of 71444358480 is 8485344417.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178576 + ... + 418064.

It is an arithmetic number, because the mean of its divisors is an integer number (1523443788).

Almost surely, 2^71444358480 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 71444358480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121875503040).

71444358480 is an abundant number, since it is smaller than the sum of its proper divisors (172306647600).

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

71444358480 is a wasteful number, since it uses less digits than its factorization.

71444358480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239629 (or 239623 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 48.

It can be divided in two parts, 71444 and 358480, that added together give a palindrome (429924).

The spelling of 71444358480 in words is "seventy-one billion, four hundred forty-four million, three hundred fifty-eight thousand, four hundred eighty".