1307731666424 has 16 divisors (see below), whose sum is σ = 2452056358200. Its totient is φ = 653849970912.

The previous prime is 1307731666403. The next prime is 1307731666457. The reversal of 1307731666424 is 4246661377031.

It is a happy number.

It is a super-2 number, since 2×1307731666424² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628687 + ... + 2295230.

Almost surely, 2^{1307731666424} is an apocalyptic number.

It is an amenable number.

1307731666424 is a deficient number, since it is larger than the sum of its proper divisors (1144324691776).

1307731666424 is a wasteful number, since it uses less digits than its factorization.

1307731666424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965582 (or 3965578 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 1307731666424 in words is "one trillion, three hundred seven billion, seven hundred thirty-one million, six hundred sixty-six thousand, four hundred twenty-four".