488915557309 has 2 divisors, whose sum is σ = 488915557310. Its totient is φ = 488915557308.

The previous prime is 488915557283. The next prime is 488915557327. The reversal of 488915557309 is 903755519884.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439310468025 + 49605089284 = 662805^2 + 222722^2 .

It is a cyclic number.

It is not a de Polignac number, because 488915557309 - 2⁹ = 488915556797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488915557369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244457778654 + 244457778655.

It is an arithmetic number, because the mean of its divisors is an integer number (244457778655).

Almost surely, 2^488915557309 is an apocalyptic number.

It is an amenable number.

488915557309 is a deficient number, since it is larger than the sum of its proper divisors (1).

488915557309 is an equidigital number, since it uses as much as digits as its factorization.

488915557309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432000, while the sum is 64.

The spelling of 488915557309 in words is "four hundred eighty-eight billion, nine hundred fifteen million, five hundred fifty-seven thousand, three hundred nine".