5491447745 has 16 divisors (see below), whose sum is σ = 7534090368. Its totient is φ = 3764083200.

The previous prime is 5491447733. The next prime is 5491447751. The reversal of 5491447745 is 5477441945.

It is not a de Polignac number, because 5491447745 - 2⁶ = 5491447681 is a prime.

It is a super-3 number, since 3×5491447745³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5491447693 and 5491447702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63470 + ... + 122520.

It is an arithmetic number, because the mean of its divisors is an integer number (470880648).

Almost surely, 2^5491447745 is an apocalyptic number.

It is an amenable number.

5491447745 is a deficient number, since it is larger than the sum of its proper divisors (2042642623).

5491447745 is a wasteful number, since it uses less digits than its factorization.

5491447745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61720.

The product of its digits is 2822400, while the sum is 50.

The square root of 5491447745 is about 74104.3031476580. The cubic root of 5491447745 is about 1764.2587706317.

The spelling of 5491447745 in words is "five billion, four hundred ninety-one million, four hundred forty-seven thousand, seven hundred forty-five".