2134167931784 has 64 divisors (see below), whose sum is σ = 4642919568000. Its totient is φ = 900772429824.

The previous prime is 2134167931783. The next prime is 2134167931787. The reversal of 2134167931784 is 4871397614312.

It is a super-2 number, since 2×2134167931784² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (2134167931783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749192 + ... + 2197640.

It is an arithmetic number, because the mean of its divisors is an integer number (72545618250).

Almost surely, 2^{2134167931784} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2134167931784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2321459784000).

2134167931784 is an abundant number, since it is smaller than the sum of its proper divisors (2508751636216).

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

2134167931784 is a wasteful number, since it uses less digits than its factorization.

2134167931784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448862 (or 1448858 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The spelling of 2134167931784 in words is "two trillion, one hundred thirty-four billion, one hundred sixty-seven million, nine hundred thirty-one thousand, seven hundred eighty-four".