76726784016 has 135 divisors (see below), whose sum is σ = 220485071677. Its totient is φ = 24907480320.

The previous prime is 76726784003. The next prime is 76726784023. The reversal of 76726784016 is 61048762767.

The square root of 76726784016 is 276996.

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., 3697126416 + 73029657600 = 60804^2 + 270240^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 136281751 + ... + 136282313.

Almost surely, 2^76726784016 is an apocalyptic number.

76726784016 is the 276996-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76726784016

76726784016 is an abundant number, since it is smaller than the sum of its proper divisors (143758287661).

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

76726784016 is an equidigital number, since it uses as much as digits as its factorization.

76726784016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 76726784016 in words is "seventy-six billion, seven hundred twenty-six million, seven hundred eighty-four thousand, sixteen".