1383779061000 has 1152 divisors, whose sum is σ = 5711848047360. Its totient is φ = 300706560000.

The previous prime is 1383779060999. The next prime is 1383779061029. The reversal of 1383779061000 is 1609773831.

1383779061000 is a `hidden beast` number, since 138 + 377 + 90 + 61 + 0 + 0 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2302460700 + ... + 2302461300.

It is an arithmetic number, because the mean of its divisors is an integer number (4958201430).

Almost surely, 2^{1383779061000} is an apocalyptic number.

1383779061000 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 1383779061000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2855924023680).

1383779061000 is an abundant number, since it is smaller than the sum of its proper divisors (4328068986360).

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

1383779061000 is a wasteful number, since it uses less digits than its factorization.

1383779061000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 1383779061000 in words is "one trillion, three hundred eighty-three billion, seven hundred seventy-nine million, sixty-one thousand".