2134881161840 has 480 divisors, whose sum is σ = 6116750788608. Its totient is φ = 677495808000.

The previous prime is 2134881161839. The next prime is 2134881161927. The reversal of 2134881161840 is 481611884312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3269342954 + ... + 3269343606.

Almost surely, 2^{2134881161840} is an apocalyptic number.

2134881161840 is a gapful number since it is divisible by the number (20) 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 2134881161840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3058375394304).

2134881161840 is an abundant number, since it is smaller than the sum of its proper divisors (3981869626768).

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

2134881161840 is a wasteful number, since it uses less digits than its factorization.

2134881161840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 2134881161840 in words is "two trillion, one hundred thirty-four billion, eight hundred eighty-one million, one hundred sixty-one thousand, eight hundred forty".