1267471976 has 16 divisors (see below), whose sum is σ = 2381280000. Its totient is φ = 632463984.

The previous prime is 1267471973. The next prime is 1267471981. The reversal of 1267471976 is 6791747621.

It is not an unprimeable number, because it can be changed into a prime (1267471973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154760 + ... + 162743.

It is an arithmetic number, because the mean of its divisors is an integer number (148830000).

Almost surely, 2^1267471976 is an apocalyptic number.

It is an amenable number.

1267471976 is a deficient number, since it is larger than the sum of its proper divisors (1113808024).

1267471976 is a wasteful number, since it uses less digits than its factorization.

1267471976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318008 (or 318004 counting only the distinct ones).

The product of its digits is 889056, while the sum is 50.

The square root of 1267471976 is about 35601.5726618923. The cubic root of 1267471976 is about 1082.2131047619.

The spelling of 1267471976 in words is "one billion, two hundred sixty-seven million, four hundred seventy-one thousand, nine hundred seventy-six".