581077579123 has 2 divisors, whose sum is σ = 581077579124. Its totient is φ = 581077579122.

The previous prime is 581077579111. The next prime is 581077579157. The reversal of 581077579123 is 321975770185.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-581077579123 is a prime.

It is not a weakly prime, because it can be changed into another prime (581077579183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290538789561 + 290538789562.

It is an arithmetic number, because the mean of its divisors is an integer number (290538789562).

Almost surely, 2^581077579123 is an apocalyptic number.

581077579123 is a deficient number, since it is larger than the sum of its proper divisors (1).

581077579123 is an equidigital number, since it uses as much as digits as its factorization.

581077579123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3704400, while the sum is 55.

The spelling of 581077579123 in words is "five hundred eighty-one billion, seventy-seven million, five hundred seventy-nine thousand, one hundred twenty-three".