2580123787 has 2 divisors, whose sum is σ = 2580123788. Its totient is φ = 2580123786.

The previous prime is 2580123773. The next prime is 2580123803. The reversal of 2580123787 is 7873210852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2580123787 - 2³¹ = 432640139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2580123757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290061893 + 1290061894.

It is an arithmetic number, because the mean of its divisors is an integer number (1290061894).

Almost surely, 2^2580123787 is an apocalyptic number.

2580123787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580123787 is an equidigital number, since it uses as much as digits as its factorization.

2580123787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 2580123787 is about 50794.9189092767. The cubic root of 2580123787 is about 1371.5559048753. Note that the first 3 decimals are identical.

The spelling of 2580123787 in words is "two billion, five hundred eighty million, one hundred twenty-three thousand, seven hundred eighty-seven".