5918388671 has 4 divisors (see below), whose sum is σ = 6373649352. Its totient is φ = 5463127992.

The previous prime is 5918388667. The next prime is 5918388733. The reversal of 5918388671 is 1768838195.

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 5918388671 - 2² = 5918388667 is a prime.

It is a super-2 number, since 2×5918388671² = 70054648922042292482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5918388611) 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, 227630321 + ... + 227630346.

It is an arithmetic number, because the mean of its divisors is an integer number (1593412338).

Almost surely, 2^5918388671 is an apocalyptic number.

5918388671 is a deficient number, since it is larger than the sum of its proper divisors (455260681).

5918388671 is a wasteful number, since it uses less digits than its factorization.

5918388671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455260680.

The product of its digits is 2903040, while the sum is 56.

The square root of 5918388671 is about 76931.0644083390. The cubic root of 5918388671 is about 1808.8441967287.

The spelling of 5918388671 in words is "five billion, nine hundred eighteen million, three hundred eighty-eight thousand, six hundred seventy-one".