1538333583380 has 96 divisors (see below), whose sum is σ = 3638470606848. Its totient is φ = 541259049600.

The previous prime is 1538333583377. The next prime is 1538333583401. The reversal of 1538333583380 is 833853338351.

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 31 ways as a sum of consecutive naturals, for example, 51291869 + ... + 51321851.

It is an arithmetic number, because the mean of its divisors is an integer number (37900735488).

Almost surely, 2^{1538333583380} is an apocalyptic number.

1538333583380 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 1538333583380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819235303424).

1538333583380 is an abundant number, since it is smaller than the sum of its proper divisors (2100137023468).

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

1538333583380 is a wasteful number, since it uses less digits than its factorization.

1538333583380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37557 (or 37555 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 1538333583380 in words is "one trillion, five hundred thirty-eight billion, three hundred thirty-three million, five hundred eighty-three thousand, three hundred eighty".