1789880461 has 16 divisors (see below), whose sum is σ = 1916183808. Its totient is φ = 1669248000.

The previous prime is 1789880459. The next prime is 1789880471. The reversal of 1789880461 is 1640889871.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1789880461 - 2¹ = 1789880459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1789880399 and 1789880408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1789880431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72061 + ... + 93661.

It is an arithmetic number, because the mean of its divisors is an integer number (119761488).

Almost surely, 2^1789880461 is an apocalyptic number.

It is an amenable number.

1789880461 is a deficient number, since it is larger than the sum of its proper divisors (126303347).

1789880461 is a wasteful number, since it uses less digits than its factorization.

1789880461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21732.

The product of its (nonzero) digits is 774144, while the sum is 52.

The square root of 1789880461 is about 42306.9788687398. The cubic root of 1789880461 is about 1214.1565182189.

The spelling of 1789880461 in words is "one billion, seven hundred eighty-nine million, eight hundred eighty thousand, four hundred sixty-one".