623065489729 has 2 divisors, whose sum is σ = 623065489730. Its totient is φ = 623065489728.

The previous prime is 623065489681. The next prime is 623065489741. The reversal of 623065489729 is 927984560326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 610700049729 + 12365440000 = 781473^2 + 111200^2 .

It is a cyclic number.

It is not a de Polignac number, because 623065489729 - 2¹⁹ = 623064965441 is a prime.

It is not a weakly prime, because it can be changed into another prime (623065489759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311532744864 + 311532744865.

It is an arithmetic number, because the mean of its divisors is an integer number (311532744865).

Almost surely, 2^623065489729 is an apocalyptic number.

It is an amenable number.

623065489729 is a deficient number, since it is larger than the sum of its proper divisors (1).

623065489729 is an equidigital number, since it uses as much as digits as its factorization.

623065489729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 623065489729 in words is "six hundred twenty-three billion, sixty-five million, four hundred eighty-nine thousand, seven hundred twenty-nine".