1315747421472 has 384 divisors, whose sum is σ = 4059093427200. Its totient is φ = 372042823680.

The previous prime is 1315747421419. The next prime is 1315747421537. The reversal of 1315747421472 is 2741247475131.

It is a super-2 number, since 2×1315747421472² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 162654804 + ... + 162662892.

It is an arithmetic number, because the mean of its divisors is an integer number (10570555800).

Almost surely, 2^{1315747421472} is an apocalyptic number.

1315747421472 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 1315747421472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2029546713600).

1315747421472 is an abundant number, since it is smaller than the sum of its proper divisors (2743346005728).

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

1315747421472 is a wasteful number, since it uses less digits than its factorization.

1315747421472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8221 (or 8191 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 48.

The spelling of 1315747421472 in words is "one trillion, three hundred fifteen billion, seven hundred forty-seven million, four hundred twenty-one thousand, four hundred seventy-two".