76440084484 has 9 divisors (see below), whose sum is σ = 133771115527. Its totient is φ = 38219765764.

The previous prime is 76440084481. The next prime is 76440084493. The reversal of 76440084484 is 48448004467.

It is a happy number.

The square root of 76440084484 is 276478.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76440084481) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 483837 + ... + 622075.

Almost surely, 2^76440084484 is an apocalyptic number.

76440084484 is the 276478-th square number.

It is an amenable number.

76440084484 is a deficient number, since it is larger than the sum of its proper divisors (57331031043).

76440084484 is an frugal number, since it uses more digits than its factorization.

76440084484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276482 (or 138241 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 49.

Multiplying 76440084484 by its sum of digits (49), we get a square (3745564139716 = 1935346²).

The spelling of 76440084484 in words is "seventy-six billion, four hundred forty million, eighty-four thousand, four hundred eighty-four".