1380824518020 has 48 divisors (see below), whose sum is σ = 3866452896768. Its totient is φ = 368206133760.

The previous prime is 1380824518019. The next prime is 1380824518057. The reversal of 1380824518020 is 208154280831.

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 15 ways as a sum of consecutive naturals, for example, 1246365 + ... + 2077275.

It is an arithmetic number, because the mean of its divisors is an integer number (80551102016).

Almost surely, 2^{1380824518020} is an apocalyptic number.

1380824518020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380824518020 is an abundant number, since it is smaller than the sum of its proper divisors (2485628378748).

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

1380824518020 is a wasteful number, since it uses less digits than its factorization.

1380824518020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858620 (or 858618 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

Adding to 1380824518020 its reverse (208154280831), we get a palindrome (1588978798851).

The spelling of 1380824518020 in words is "one trillion, three hundred eighty billion, eight hundred twenty-four million, five hundred eighteen thousand, twenty".