2134731837721 has 8 divisors (see below), whose sum is σ = 2545767160704. Its totient is φ = 1750214922720.

The previous prime is 2134731837713. The next prime is 2134731837739. The reversal of 2134731837721 is 1277381374312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2134731837721 - 2³ = 2134731837713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2134731837761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6629601820 + ... + 6629602141.

It is an arithmetic number, because the mean of its divisors is an integer number (318220895088).

Almost surely, 2^{2134731837721} is an apocalyptic number.

It is an amenable number.

2134731837721 is a deficient number, since it is larger than the sum of its proper divisors (411035322983).

2134731837721 is a wasteful number, since it uses less digits than its factorization.

2134731837721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13259203991.

The product of its digits is 1185408, while the sum is 49.

The spelling of 2134731837721 in words is "two trillion, one hundred thirty-four billion, seven hundred thirty-one million, eight hundred thirty-seven thousand, seven hundred twenty-one".