1247433336428 has 12 divisors (see below), whose sum is σ = 2183016250632. Its totient is φ = 623714407680.

The previous prime is 1247433336427. The next prime is 1247433336439. The reversal of 1247433336428 is 8246333347421.

It is not an unprimeable number, because it can be changed into a prime (1247433336421) 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 3 ways as a sum of consecutive naturals, for example, 1587788 + ... + 2239628.

It is an arithmetic number, because the mean of its divisors is an integer number (181918020886).

Almost surely, 2^{1247433336428} is an apocalyptic number.

It is an amenable number.

1247433336428 is a deficient number, since it is larger than the sum of its proper divisors (935582914204).

1247433336428 is a wasteful number, since it uses less digits than its factorization.

1247433336428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130272 (or 1130270 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 50.

The spelling of 1247433336428 in words is "one trillion, two hundred forty-seven billion, four hundred thirty-three million, three hundred thirty-six thousand, four hundred twenty-eight".