1381538108000 has 96 divisors (see below), whose sum is σ = 3573094019040. Its totient is φ = 523530201600.

The previous prime is 1381538107997. The next prime is 1381538108033. The reversal of 1381538108000 is 8018351831.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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, 9013067 + ... + 9165066.

It is an arithmetic number, because the mean of its divisors is an integer number (37219729365).

Almost surely, 2^{1381538108000} is an apocalyptic number.

1381538108000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1381538108000 is an abundant number, since it is smaller than the sum of its proper divisors (2191555911040).

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

1381538108000 is a wasteful number, since it uses less digits than its factorization.

1381538108000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18178177 (or 18178159 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 1381538108000 in words is "one trillion, three hundred eighty-one billion, five hundred thirty-eight million, one hundred eight thousand".