5461717581 has 48 divisors (see below), whose sum is σ = 8250802560. Its totient is φ = 3477264000.

The previous prime is 5461717567. The next prime is 5461717589. The reversal of 5461717581 is 1857171645.

5461717581 is a `hidden beast` number, since 5 + 4 + 61 + 7 + 1 + 7 + 581 = 666.

It is not a de Polignac number, because 5461717581 - 2²¹ = 5459620429 is a prime.

It is a super-2 number, since 2×5461717581² = 59660717869208983122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5461717589) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17229235 + ... + 17229551.

It is an arithmetic number, because the mean of its divisors is an integer number (171891720).

Almost surely, 2^5461717581 is an apocalyptic number.

It is an amenable number.

5461717581 is a deficient number, since it is larger than the sum of its proper divisors (2789084979).

5461717581 is a wasteful number, since it uses less digits than its factorization.

5461717581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 863 counting only the distinct ones).

The product of its digits is 235200, while the sum is 45.

The square root of 5461717581 is about 73903.4341624258. The cubic root of 5461717581 is about 1761.0691658195.

The spelling of 5461717581 in words is "five billion, four hundred sixty-one million, seven hundred seventeen thousand, five hundred eighty-one".