1296726471 has 24 divisors (see below), whose sum is σ = 1910851904. Its totient is φ = 847143360.

The previous prime is 1296726467. The next prime is 1296726479. The reversal of 1296726471 is 1746276921.

It is not a de Polignac number, because 1296726471 - 2² = 1296726467 is a prime.

It is a super-3 number, since 3×1296726471³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296726479) 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 23 ways as a sum of consecutive naturals, for example, 147810 + ... + 156336.

Almost surely, 2^1296726471 is an apocalyptic number.

1296726471 is a deficient number, since it is larger than the sum of its proper divisors (614125433).

1296726471 is a wasteful number, since it uses less digits than its factorization.

1296726471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8871 (or 8868 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1296726471 is about 36010.0884614298. The cubic root of 1296726471 is about 1090.4760345316.

The spelling of 1296726471 in words is "one billion, two hundred ninety-six million, seven hundred twenty-six thousand, four hundred seventy-one".