2159291964 has 48 divisors (see below), whose sum is σ = 5101544448. Its totient is φ = 710793408.

The previous prime is 2159291963. The next prime is 2159291983. The reversal of 2159291964 is 4691929512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159291963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311197 + ... + 318059.

It is an arithmetic number, because the mean of its divisors is an integer number (106282176).

Almost surely, 2^2159291964 is an apocalyptic number.

It is an amenable number.

2159291964 is an abundant number, since it is smaller than the sum of its proper divisors (2942252484).

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

2159291964 is a wasteful number, since it uses less digits than its factorization.

2159291964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194 (or 7192 counting only the distinct ones).

The product of its digits is 349920, while the sum is 48.

The square root of 2159291964 is about 46468.1822756174. The cubic root of 2159291964 is about 1292.5195562390.

The spelling of 2159291964 in words is "two billion, one hundred fifty-nine million, two hundred ninety-one thousand, nine hundred sixty-four".