1315844643484 has 72 divisors (see below), whose sum is σ = 2820163122000. Its totient is φ = 534158731008.

The previous prime is 1315844643457. The next prime is 1315844643523. The reversal of 1315844643484 is 4843464485131.

It is a super-3 number, since 3×1315844643484³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23541282 + ... + 23597110.

It is an arithmetic number, because the mean of its divisors is an integer number (39168932250).

Almost surely, 2^{1315844643484} is an apocalyptic number.

1315844643484 is a gapful number since it is divisible by the number (14) 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 1315844643484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410081561000).

1315844643484 is an abundant number, since it is smaller than the sum of its proper divisors (1504318478516).

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

1315844643484 is a wasteful number, since it uses less digits than its factorization.

1315844643484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62195 (or 62186 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 55.

The spelling of 1315844643484 in words is "one trillion, three hundred fifteen billion, eight hundred forty-four million, six hundred forty-three thousand, four hundred eighty-four".