1380375231840 has 288 divisors, whose sum is σ = 5188657533696. Its totient is φ = 331387130880.

The previous prime is 1380375231839. The next prime is 1380375231899. The reversal of 1380375231840 is 481325730831.

1380375231840 is a `hidden beast` number, since 1 + 3 + 8 + 0 + 375 + 231 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1208487 + ... + 2054553.

It is an arithmetic number, because the mean of its divisors is an integer number (18016171992).

Almost surely, 2^{1380375231840} is an apocalyptic number.

1380375231840 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 1380375231840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2594328766848).

1380375231840 is an abundant number, since it is smaller than the sum of its proper divisors (3808282301856).

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

1380375231840 is a wasteful number, since it uses less digits than its factorization.

1380375231840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846202 (or 846191 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 1380375231840 in words is "one trillion, three hundred eighty billion, three hundred seventy-five million, two hundred thirty-one thousand, eight hundred forty".