1276988471 has 8 divisors (see below), whose sum is σ = 1394252688. Its totient is φ = 1159920000.

The previous prime is 1276988459. The next prime is 1276988477. The reversal of 1276988471 is 1748896721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1276988471 - 2¹⁰ = 1276987447 is a prime.

It is a super-3 number, since 3×1276988471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276988477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35120 + ... + 61541.

It is an arithmetic number, because the mean of its divisors is an integer number (174281586).

Almost surely, 2^1276988471 is an apocalyptic number.

1276988471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1276988471 is a deficient number, since it is larger than the sum of its proper divisors (117264217).

1276988471 is a wasteful number, since it uses less digits than its factorization.

1276988471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97873.

The product of its digits is 1354752, while the sum is 53.

The square root of 1276988471 is about 35734.9754582258. The cubic root of 1276988471 is about 1084.9148626097.

The spelling of 1276988471 in words is "one billion, two hundred seventy-six million, nine hundred eighty-eight thousand, four hundred seventy-one".