1247130742986 has 48 divisors (see below), whose sum is σ = 2897136385920. Its totient is φ = 397635879960.

The previous prime is 1247130742927. The next prime is 1247130743003. The reversal of 1247130742986 is 6892470317421.

1247130742986 is a `hidden beast` number, since 1 + 2 + 4 + 7 + 130 + 7 + 429 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21800370 + ... + 21857501.

It is an arithmetic number, because the mean of its divisors is an integer number (60357008040).

Almost surely, 2^{1247130742986} is an apocalyptic number.

1247130742986 is an abundant number, since it is smaller than the sum of its proper divisors (1650005642934).

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

1247130742986 is a wasteful number, since it uses less digits than its factorization.

1247130742986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43657928 (or 43657899 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 1247130742986 in words is "one trillion, two hundred forty-seven billion, one hundred thirty million, seven hundred forty-two thousand, nine hundred eighty-six".