71489925376 has 81 divisors (see below), whose sum is σ = 151742886421. Its totient is φ = 33608093696.

The previous prime is 71489925371. The next prime is 71489925383. The reversal of 71489925376 is 67352998417.

The square root of 71489925376 is 267376.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 55658246400 + 15831678976 = 235920^2 + 125824^2 .

It is a super-2 number, since 2×71489925376² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

Its product of digits (22861440) is a multiple of the sum of its prime factors (2016).

It is not an unprimeable number, because it can be changed into a prime (71489925371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 72725781 + ... + 72726763.

Almost surely, 2^71489925376 is an apocalyptic number.

71489925376 is the 267376-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71489925376

71489925376 is an abundant number, since it is smaller than the sum of its proper divisors (80252961045).

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

71489925376 is an frugal number, since it uses more digits than its factorization.

71489925376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016 (or 1002 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 61.

The spelling of 71489925376 in words is "seventy-one billion, four hundred eighty-nine million, nine hundred twenty-five thousand, three hundred seventy-six".