2159346791 has 16 divisors (see below), whose sum is σ = 2488926720. Its totient is φ = 1835079840.

The previous prime is 2159346773. The next prime is 2159346797. The reversal of 2159346791 is 1976439512.

It is a cyclic number.

It is not a de Polignac number, because 2159346791 - 2¹⁸ = 2159084647 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159346797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342910 + ... + 1344516.

It is an arithmetic number, because the mean of its divisors is an integer number (155557920).

Almost surely, 2^2159346791 is an apocalyptic number.

2159346791 is a deficient number, since it is larger than the sum of its proper divisors (329579929).

2159346791 is a wasteful number, since it uses less digits than its factorization.

2159346791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134.

The product of its digits is 408240, while the sum is 47.

The square root of 2159346791 is about 46468.7722131756. The cubic root of 2159346791 is about 1292.5304956845.

The spelling of 2159346791 in words is "two billion, one hundred fifty-nine million, three hundred forty-six thousand, seven hundred ninety-one".