2654780159 has 4 divisors (see below), whose sum is σ = 2656538640. Its totient is φ = 2653021680.

The previous prime is 2654780137. The next prime is 2654780171. The reversal of 2654780159 is 9510874562.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2654780159 - 2¹² = 2654776063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654780459) 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, 876974 + ... + 879995.

It is an arithmetic number, because the mean of its divisors is an integer number (664134660).

Almost surely, 2^2654780159 is an apocalyptic number.

2654780159 is a deficient number, since it is larger than the sum of its proper divisors (1758481).

2654780159 is a wasteful number, since it uses less digits than its factorization.

2654780159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758480.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 2654780159 is about 51524.5587948116. The cubic root of 2654780159 is about 1384.6590686853.

The spelling of 2654780159 in words is "two billion, six hundred fifty-four million, seven hundred eighty thousand, one hundred fifty-nine".