5491915451 has 12 divisors (see below), whose sum is σ = 6076565712. Its totient is φ = 4959570000.

The previous prime is 5491915417. The next prime is 5491915493. The reversal of 5491915451 is 1545191945.

It is not a de Polignac number, because 5491915451 - 2¹⁰ = 5491914427 is a prime.

It is a super-2 number, since 2×5491915451² = 60322270641865066802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5491915651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132020 + ... + 168561.

It is an arithmetic number, because the mean of its divisors is an integer number (506380476).

Almost surely, 2^5491915451 is an apocalyptic number.

5491915451 is a deficient number, since it is larger than the sum of its proper divisors (584650261).

5491915451 is a wasteful number, since it uses less digits than its factorization.

5491915451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300754 (or 300743 counting only the distinct ones).

The product of its digits is 162000, while the sum is 44.

The square root of 5491915451 is about 74107.4588081389. The cubic root of 5491915451 is about 1764.3088564515.

The spelling of 5491915451 in words is "five billion, four hundred ninety-one million, nine hundred fifteen thousand, four hundred fifty-one".