71544480484 has 27 divisors (see below), whose sum is σ = 133017849993. Its totient is φ = 33663711168.

The previous prime is 71544480443. The next prime is 71544480499. The reversal of 71544480484 is 48408444517.

The square root of 71544480484 is 267478.

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., 55700720100 + 15843760384 = 236010^2 + 125872^2 .

It is a super-2 number, since 2×71544480484² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9090319 + ... + 9098185.

Almost surely, 2^71544480484 is an apocalyptic number.

71544480484 is the 267478-th square number.

It is an amenable number.

71544480484 is a deficient number, since it is larger than the sum of its proper divisors (61473369509).

71544480484 is an frugal number, since it uses more digits than its factorization.

71544480484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15772 (or 7886 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 49.

Multiplying 71544480484 by its sum of digits (49), we get a square (3505679543716 = 1872346²).

The spelling of 71544480484 in words is "seventy-one billion, five hundred forty-four million, four hundred eighty thousand, four hundred eighty-four".