1881337038336 has 640 divisors, whose sum is σ = 6777530496000. Its totient is φ = 503000727552.

The previous prime is 1881337038299. The next prime is 1881337038341. The reversal of 1881337038336 is 6338307331881.

1881337038336 is a `hidden beast` number, since 1 + 88 + 133 + 70 + 38 + 336 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 294461830 + ... + 294468218.

It is an arithmetic number, because the mean of its divisors is an integer number (10589891400).

Almost surely, 2^{1881337038336} is an apocalyptic number.

1881337038336 is a gapful number since it is divisible by the number (16) 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 1881337038336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3388765248000).

1881337038336 is an abundant number, since it is smaller than the sum of its proper divisors (4896193457664).

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

1881337038336 is a wasteful number, since it uses less digits than its factorization.

1881337038336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619 (or 6597 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 1881337038336 in words is "one trillion, eight hundred eighty-one billion, three hundred thirty-seven million, thirty-eight thousand, three hundred thirty-six".