1247130743040 has 2016 divisors, whose sum is σ = 5810069018880. Its totient is φ = 248959401984.

The previous prime is 1247130743011. The next prime is 1247130743051. The reversal of 1247130743040 is 403470317421.

1247130743040 is a `hidden beast` number, since 1 + 2 + 47 + 1 + 307 + 4 + 304 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1247130742986 and 1247130743004.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 1613364094 + ... + 1613364866.

It is an arithmetic number, because the mean of its divisors is an integer number (2881978680).

Almost surely, 2^{1247130743040} is an apocalyptic number.

1247130743040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1247130743040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2905034509440).

1247130743040 is an abundant number, since it is smaller than the sum of its proper divisors (4562938275840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1247130743040 is an equidigital number, since it uses as much as digits as its factorization.

1247130743040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 1247130743040 in words is "one trillion, two hundred forty-seven billion, one hundred thirty million, seven hundred forty-three thousand, forty".