1320048987264 has 128 divisors (see below), whose sum is σ = 4452546268800. Its totient is φ = 377156846592.

The previous prime is 1320048987239. The next prime is 1320048987287. The reversal of 1320048987264 is 4627898400231.

1320048987264 is a `hidden beast` number, since 1 + 3 + 20 + 0 + 489 + 87 + 2 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1320048987264.

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, 27258567 + ... + 27306950.

It is an arithmetic number, because the mean of its divisors is an integer number (34785517725).

Almost surely, 2^{1320048987264} is an apocalyptic number.

1320048987264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1320048987264 is an abundant number, since it is smaller than the sum of its proper divisors (3132497281536).

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

1320048987264 is an equidigital number, since it uses as much as digits as its factorization.

1320048987264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54565547 (or 54565529 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 1320048987264 in words is "one trillion, three hundred twenty billion, forty-eight million, nine hundred eighty-seven thousand, two hundred sixty-four".