1271956496 has 10 divisors (see below), whose sum is σ = 2464415742. Its totient is φ = 635978240.

The previous prime is 1271956481. The next prime is 1271956513. The reversal of 1271956496 is 6946591721.

It can be written as a sum of positive squares in only one way, i.e., 1185838096 + 86118400 = 34436^2 + 9280^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39748625 + ... + 39748656.

Almost surely, 2^1271956496 is an apocalyptic number.

1271956496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1271956496 is a deficient number, since it is larger than the sum of its proper divisors (1192459246).

1271956496 is an equidigital number, since it uses as much as digits as its factorization.

1271956496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79497289 (or 79497283 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The square root of 1271956496 is about 35664.4990992443. The cubic root of 1271956496 is about 1083.4879504969.

The spelling of 1271956496 in words is "one billion, two hundred seventy-one million, nine hundred fifty-six thousand, four hundred ninety-six".