5091666718 has 8 divisors (see below), whose sum is σ = 7843919112. Its totient is φ = 2477027016.

The previous prime is 5091666689. The next prime is 5091666739. The reversal of 5091666718 is 8176661905.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34403080 + ... + 34403227.

It is an arithmetic number, because the mean of its divisors is an integer number (980489889).

Almost surely, 2^5091666718 is an apocalyptic number.

5091666718 is a deficient number, since it is larger than the sum of its proper divisors (2752252394).

5091666718 is a wasteful number, since it uses less digits than its factorization.

5091666718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68806346.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 5091666718 is about 71355.9157883914. The cubic root of 5091666718 is about 1720.3625878366.

The spelling of 5091666718 in words is "five billion, ninety-one million, six hundred sixty-six thousand, seven hundred eighteen".