5719641898 has 4 divisors (see below), whose sum is σ = 8579462850. Its totient is φ = 2859820948.

The previous prime is 5719641869. The next prime is 5719641937. The reversal of 5719641898 is 8981469175.

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

It can be written as a sum of positive squares in only one way, i.e., 3834953329 + 1884688569 = 61927^2 + 43413^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1429910473 + ... + 1429910476.

Almost surely, 2^5719641898 is an apocalyptic number.

5719641898 is a deficient number, since it is larger than the sum of its proper divisors (2859820952).

5719641898 is a wasteful number, since it uses less digits than its factorization.

5719641898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859820951.

The product of its digits is 4354560, while the sum is 58.

The square root of 5719641898 is about 75628.3141290350. The cubic root of 5719641898 is about 1788.3654854376.

It can be divided in two parts, 571 and 9641898, that added together give a palindrome (9642469).

The spelling of 5719641898 in words is "five billion, seven hundred nineteen million, six hundred forty-one thousand, eight hundred ninety-eight".