47887458709 has 2 divisors, whose sum is σ = 47887458710. Its totient is φ = 47887458708.

The previous prime is 47887458673. The next prime is 47887458757. The reversal of 47887458709 is 90785478874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44540836209 + 3346622500 = 211047^2 + 57850^2 .

It is a cyclic number.

It is not a de Polignac number, because 47887458709 - 2¹³ = 47887450517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47887458799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23943729354 + 23943729355.

It is an arithmetic number, because the mean of its divisors is an integer number (23943729355).

Almost surely, 2^47887458709 is an apocalyptic number.

It is an amenable number.

47887458709 is a deficient number, since it is larger than the sum of its proper divisors (1).

47887458709 is an equidigital number, since it uses as much as digits as its factorization.

47887458709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126443520, while the sum is 67.

The spelling of 47887458709 in words is "forty-seven billion, eight hundred eighty-seven million, four hundred fifty-eight thousand, seven hundred nine".