1398798132480 has 576 divisors, whose sum is σ = 5686257561600. Its totient is φ = 318972764160.

The previous prime is 1398798132449. The next prime is 1398798132503. The reversal of 1398798132480 is 842318978931.

1398798132480 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 79 + 81 + 3 + 2 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106196295 + ... + 106209465.

Almost surely, 2^{1398798132480} is an apocalyptic number.

1398798132480 is a gapful number since it is divisible by the number (10) 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 1398798132480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2843128780800).

1398798132480 is an abundant number, since it is smaller than the sum of its proper divisors (4287459429120).

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

1398798132480 is a wasteful number, since it uses less digits than its factorization.

1398798132480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13647 (or 13627 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 1398798132480 in words is "one trillion, three hundred ninety-eight billion, seven hundred ninety-eight million, one hundred thirty-two thousand, four hundred eighty".