48579531709 has 2 divisors, whose sum is σ = 48579531710. Its totient is φ = 48579531708.

The previous prime is 48579531659. The next prime is 48579531761. The reversal of 48579531709 is 90713597584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33652068025 + 14927463684 = 183445^2 + 122178^2 .

It is a cyclic number.

It is not a de Polignac number, because 48579531709 - 2⁹ = 48579531197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48579531799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24289765854 + 24289765855.

It is an arithmetic number, because the mean of its divisors is an integer number (24289765855).

Almost surely, 2^48579531709 is an apocalyptic number.

It is an amenable number.

48579531709 is a deficient number, since it is larger than the sum of its proper divisors (1).

48579531709 is an equidigital number, since it uses as much as digits as its factorization.

48579531709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9525600, while the sum is 58.

The spelling of 48579531709 in words is "forty-eight billion, five hundred seventy-nine million, five hundred thirty-one thousand, seven hundred nine".