5471345618 has 4 divisors (see below), whose sum is σ = 8207018430. Its totient is φ = 2735672808.

The previous prime is 5471345611. The next prime is 5471345629. The reversal of 5471345618 is 8165431745.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8165431745 = 5 ⋅1633086349.

It can be written as a sum of positive squares in only one way, i.e., 4197355369 + 1273990249 = 64787^2 + 35693^2 .

It is not an unprimeable number, because it can be changed into a prime (5471345611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1367836403 + ... + 1367836406.

Almost surely, 2^5471345618 is an apocalyptic number.

5471345618 is a deficient number, since it is larger than the sum of its proper divisors (2735672812).

5471345618 is a wasteful number, since it uses less digits than its factorization.

5471345618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735672811.

The product of its digits is 403200, while the sum is 44.

The square root of 5471345618 is about 73968.5447876325. The cubic root of 5471345618 is about 1762.1033756216.

The spelling of 5471345618 in words is "five billion, four hundred seventy-one million, three hundred forty-five thousand, six hundred eighteen".