2159546736 has 80 divisors (see below), whose sum is σ = 5808444704. Its totient is φ = 690757632.

The previous prime is 2159546723. The next prime is 2159546743. The reversal of 2159546736 is 6376459512.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121320 + ... + 137976.

Almost surely, 2^2159546736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2159546736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2904222352).

2159546736 is an abundant number, since it is smaller than the sum of its proper divisors (3648897968).

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

2159546736 is a wasteful number, since it uses less digits than its factorization.

2159546736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16778 (or 16772 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The square root of 2159546736 is about 46470.9235544120. The cubic root of 2159546736 is about 1292.5703884636.

The spelling of 2159546736 in words is "two billion, one hundred fifty-nine million, five hundred forty-six thousand, seven hundred thirty-six".