1247864060352 has 1344 divisors, whose sum is σ = 4636122117120. Its totient is φ = 288183287808.

The previous prime is 1247864060341. The next prime is 1247864060353. The reversal of 1247864060352 is 2530604687421.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247864060353) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 5355639628 + ... + 5355639860.

Almost surely, 2^{1247864060352} is an apocalyptic number.

1247864060352 is a gapful number since it is divisible by the number (12) 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 1247864060352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2318061058560).

1247864060352 is an abundant number, since it is smaller than the sum of its proper divisors (3388258056768).

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

1247864060352 is a wasteful number, since it uses less digits than its factorization.

1247864060352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 1247864060352 in words is "one trillion, two hundred forty-seven billion, eight hundred sixty-four million, sixty thousand, three hundred fifty-two".