276404789681476 has 9 divisors (see below), whose sum is σ = 483708440131581. Its totient is φ = 138202378215312.

The previous prime is 276404789681413. The next prime is 276404789681483. The reversal of 276404789681476 is 674186987404672.

The square root of 276404789681476 is 16625426.

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

276404789681476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 276268610968900 + 136178712576 = 16621330^2 + 369024^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 276404789681396 and 276404789681405.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29094496 + ... + 37407208.

Almost surely, 2^{276404789681476} is an apocalyptic number.

276404789681476 is the 16625426-th square number.

It is an amenable number.

276404789681476 is a deficient number, since it is larger than the sum of its proper divisors (207303650450105).

276404789681476 is an frugal number, since it uses more digits than its factorization.

276404789681476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16625430 (or 8312715 counting only the distinct ones).

The product of its (nonzero) digits is 5462360064, while the sum is 79.

The spelling of 276404789681476 in words is "two hundred seventy-six trillion, four hundred four billion, seven hundred eighty-nine million, six hundred eighty-one thousand, four hundred seventy-six".