1275776996 has 12 divisors (see below), whose sum is σ = 2404349052. Its totient is φ = 588820128.

The previous prime is 1275776989. The next prime is 1275777011. The reversal of 1275776996 is 6996775721.

It can be written as a sum of positive squares in 2 ways, for example, as 338560000 + 937216996 = 18400^2 + 30614^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12267035 + ... + 12267138.

It is an arithmetic number, because the mean of its divisors is an integer number (200362421).

Almost surely, 2^1275776996 is an apocalyptic number.

It is an amenable number.

1275776996 is a deficient number, since it is larger than the sum of its proper divisors (1128572056).

1275776996 is a wasteful number, since it uses less digits than its factorization.

1275776996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24534190 (or 24534188 counting only the distinct ones).

The product of its digits is 10001880, while the sum is 59.

The square root of 1275776996 is about 35718.0206058510. The cubic root of 1275776996 is about 1084.5716689367.

The spelling of 1275776996 in words is "one billion, two hundred seventy-five million, seven hundred seventy-six thousand, nine hundred ninety-six".