1277772508996 has 81 divisors (see below), whose sum is σ = 2387838898557. Its totient is φ = 598200271200.

The previous prime is 1277772508993. The next prime is 1277772508997. The reversal of 1277772508996 is 6998052777721.

The square root of 1277772508996 is 1130386.

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., 1251959588100 + 25812920896 = 1118910^2 + 160664^2 .

It is not an unprimeable number, because it can be changed into a prime (1277772508993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6486154770 + ... + 6486154966.

Almost surely, 2^{1277772508996} is an apocalyptic number.

1277772508996 is the 1130386-th square number.

It is an amenable number.

1277772508996 is a deficient number, since it is larger than the sum of its proper divisors (1110066389561).

1277772508996 is an equidigital number, since it uses as much as digits as its factorization.

1277772508996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 186701760, while the sum is 70.

The spelling of 1277772508996 in words is "one trillion, two hundred seventy-seven billion, seven hundred seventy-two million, five hundred eight thousand, nine hundred ninety-six".