1244731633152 has 160 divisors (see below), whose sum is σ = 3818697087744. Its totient is φ = 352922419200.

The previous prime is 1244731633147. The next prime is 1244731633177. The reversal of 1244731633152 is 2513361374421.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966652 + ... + 1850372.

Almost surely, 2^{1244731633152} is an apocalyptic number.

1244731633152 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 1244731633152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909348543872).

1244731633152 is an abundant number, since it is smaller than the sum of its proper divisors (2573965454592).

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

1244731633152 is an equidigital number, since it uses as much as digits as its factorization.

1244731633152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883880 (or 883864 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The spelling of 1244731633152 in words is "one trillion, two hundred forty-four billion, seven hundred thirty-one million, six hundred thirty-three thousand, one hundred fifty-two".