1297427238724 has 12 divisors (see below), whose sum is σ = 2277751656124. Its totient is φ = 646641051264.

The previous prime is 1297427238673. The next prime is 1297427238799. The reversal of 1297427238724 is 4278327247921.

It can be written as a sum of positive squares in 2 ways, for example, as 581680782400 + 715746456324 = 762680^2 + 846018^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 518140617 + ... + 518143120.

Almost surely, 2^{1297427238724} is an apocalyptic number.

It is an amenable number.

1297427238724 is a deficient number, since it is larger than the sum of its proper divisors (980324417400).

1297427238724 is a wasteful number, since it uses less digits than its factorization.

1297427238724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036284054 (or 1036284052 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 58.

The spelling of 1297427238724 in words is "one trillion, two hundred ninety-seven billion, four hundred twenty-seven million, two hundred thirty-eight thousand, seven hundred twenty-four".