56434046591 has 8 divisors (see below), whose sum is σ = 60779311824. Its totient is φ = 52089379200.

The previous prime is 56434046561. The next prime is 56434046593. The reversal of 56434046591 is 19564043465.

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

It is a cyclic number.

It is not a de Polignac number, because 56434046591 - 2⁶ = 56434046527 is a prime.

It is a super-2 number, since 2×56434046591² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56434046593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57191 + ... + 340791.

It is an arithmetic number, because the mean of its divisors is an integer number (7597413978).

Almost surely, 2^56434046591 is an apocalyptic number.

56434046591 is a deficient number, since it is larger than the sum of its proper divisors (4345265233).

56434046591 is a wasteful number, since it uses less digits than its factorization.

56434046591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298921.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 56434046591 in words is "fifty-six billion, four hundred thirty-four million, forty-six thousand, five hundred ninety-one".