1312479823648 has 96 divisors (see below), whose sum is σ = 2996443933056. Its totient is φ = 554289082368.

The previous prime is 1312479823643. The next prime is 1312479823651. The reversal of 1312479823648 is 8463289742131.

It is a junction number, because it is equal to n+sod(n) for n = 1312479823592 and 1312479823601.

It is not an unprimeable number, because it can be changed into a prime (1312479823643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4229115 + ... + 4528837.

It is an arithmetic number, because the mean of its divisors is an integer number (31212957636).

Almost surely, 2^{1312479823648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312479823648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498221966528).

1312479823648 is an abundant number, since it is smaller than the sum of its proper divisors (1683964109408).

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

1312479823648 is a wasteful number, since it uses less digits than its factorization.

1312479823648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300026 (or 300018 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 58.

The spelling of 1312479823648 in words is "one trillion, three hundred twelve billion, four hundred seventy-nine million, eight hundred twenty-three thousand, six hundred forty-eight".