2159391829 has 16 divisors (see below), whose sum is σ = 2571840000. Its totient is φ = 1811512752.

The previous prime is 2159391803. The next prime is 2159391841. The reversal of 2159391829 is 9281939512.

It is not a de Polignac number, because 2159391829 - 2⁵ = 2159391797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159391229) 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, 50854 + ... + 83095.

It is an arithmetic number, because the mean of its divisors is an integer number (160740000).

Almost surely, 2^2159391829 is an apocalyptic number.

It is an amenable number.

2159391829 is a deficient number, since it is larger than the sum of its proper divisors (412448171).

2159391829 is an equidigital number, since it uses as much as digits as its factorization.

2159391829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134017 (or 134003 counting only the distinct ones).

The product of its digits is 349920, while the sum is 49.

The square root of 2159391829 is about 46469.2568156625. The cubic root of 2159391829 is about 1292.5394818254.

The spelling of 2159391829 in words is "two billion, one hundred fifty-nine million, three hundred ninety-one thousand, eight hundred twenty-nine".