581591120043 has 4 divisors (see below), whose sum is σ = 775454826728. Its totient is φ = 387727413360.

The previous prime is 581591120039. The next prime is 581591120081. The reversal of 581591120043 is 340021195185.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 581591120043 - 2² = 581591120039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 581591119983 and 581591120010.

It is not an unprimeable number, because it can be changed into a prime (581591120083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96931853338 + ... + 96931853343.

It is an arithmetic number, because the mean of its divisors is an integer number (193863706682).

Almost surely, 2^581591120043 is an apocalyptic number.

581591120043 is a deficient number, since it is larger than the sum of its proper divisors (193863706685).

581591120043 is a wasteful number, since it uses less digits than its factorization.

581591120043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193863706684.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 581591120043 in words is "five hundred eighty-one billion, five hundred ninety-one million, one hundred twenty thousand, forty-three".