1321472959488 has 528 divisors, whose sum is σ = 4345387320960. Its totient is φ = 396380160000.

The previous prime is 1321472959463. The next prime is 1321472959501. The reversal of 1321472959488 is 8849592741231.

1321472959488 is a `hidden beast` number, since 1 + 3 + 2 + 14 + 7 + 29 + 594 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (528).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 337884253 + ... + 337888163.

Almost surely, 2^{1321472959488} is an apocalyptic number.

1321472959488 is a gapful number since it is divisible by the number (18) 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 1321472959488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2172693660480).

1321472959488 is an abundant number, since it is smaller than the sum of its proper divisors (3023914361472).

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

1321472959488 is a wasteful number, since it uses less digits than its factorization.

1321472959488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063 (or 4028 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 1321472959488 in words is "one trillion, three hundred twenty-one billion, four hundred seventy-two million, nine hundred fifty-nine thousand, four hundred eighty-eight".