2134278167868 has 288 divisors, whose sum is σ = 6989409423360. Its totient is φ = 532837509120.

The previous prime is 2134278167807. The next prime is 2134278167941. The reversal of 2134278167868 is 8687618724312.

It is a happy number.

2134278167868 is a `hidden beast` number, since 2 + 1 + 3 + 427 + 81 + 6 + 78 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17866996 + ... + 17986052.

It is an arithmetic number, because the mean of its divisors is an integer number (24268782720).

Almost surely, 2^{2134278167868} is an apocalyptic number.

2134278167868 is a gapful number since it is divisible by the number (28) 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 2134278167868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3494704711680).

2134278167868 is an abundant number, since it is smaller than the sum of its proper divisors (4855131255492).

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

2134278167868 is a wasteful number, since it uses less digits than its factorization.

2134278167868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119337 (or 119332 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 2134278167868 in words is "two trillion, one hundred thirty-four billion, two hundred seventy-eight million, one hundred sixty-seven thousand, eight hundred sixty-eight".