2159689372 has 12 divisors (see below), whose sum is σ = 3807044640. Its totient is φ = 1071962336.

The previous prime is 2159689361. The next prime is 2159689379. The reversal of 2159689372 is 2739869512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159689379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969972 + ... + 1971067.

It is an arithmetic number, because the mean of its divisors is an integer number (317253720).

Almost surely, 2^2159689372 is an apocalyptic number.

It is an amenable number.

2159689372 is a deficient number, since it is larger than the sum of its proper divisors (1647355268).

2159689372 is a wasteful number, since it uses less digits than its factorization.

2159689372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941180 (or 3941178 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 2159689372 is about 46472.4582091372. The cubic root of 2159689372 is about 1292.5988455171.

It can be divided in two parts, 2159689 and 372, that multiplied together give a palindrome (803404308).

The spelling of 2159689372 in words is "two billion, one hundred fifty-nine million, six hundred eighty-nine thousand, three hundred seventy-two".