5781889087 has 8 divisors (see below), whose sum is σ = 6328726880. Its totient is φ = 5249633760.

The previous prime is 5781889073. The next prime is 5781889093. The reversal of 5781889087 is 7809881875.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5781889087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781889037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644787 + ... + 3646372.

It is an arithmetic number, because the mean of its divisors is an integer number (791090860).

Almost surely, 2^5781889087 is an apocalyptic number.

5781889087 is a deficient number, since it is larger than the sum of its proper divisors (546837793).

5781889087 is a wasteful number, since it uses less digits than its factorization.

5781889087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291233.

The product of its (nonzero) digits is 9031680, while the sum is 61.

The square root of 5781889087 is about 76038.7341228140. The cubic root of 5781889087 is about 1794.8297194947.

The spelling of 5781889087 in words is "five billion, seven hundred eighty-one million, eight hundred eighty-nine thousand, eighty-seven".