5491797318 has 48 divisors (see below), whose sum is σ = 13790290176. Its totient is φ = 1546982640.

The previous prime is 5491797293. The next prime is 5491797329. The reversal of 5491797318 is 8137971945.

It is a happy number.

5491797318 is a `hidden beast` number, since 5 + 491 + 79 + 73 + 18 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297996 + ... + 315887.

It is an arithmetic number, because the mean of its divisors is an integer number (287297712).

Almost surely, 2^5491797318 is an apocalyptic number.

5491797318 is an abundant number, since it is smaller than the sum of its proper divisors (8298492858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5491797318 is a wasteful number, since it uses less digits than its factorization.

5491797318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613969 (or 613966 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 5491797318 is about 74106.6617653231. The cubic root of 5491797318 is about 1764.2962060630.

The spelling of 5491797318 in words is "five billion, four hundred ninety-one million, seven hundred ninety-seven thousand, three hundred eighteen".