47305156609 has 2 divisors, whose sum is σ = 47305156610. Its totient is φ = 47305156608.

The previous prime is 47305156579. The next prime is 47305156621. The reversal of 47305156609 is 90665150374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47304945009 + 211600 = 217497^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 47305156609 - 2¹³ = 47305148417 is a prime.

It is not a weakly prime, because it can be changed into another prime (47305156699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23652578304 + 23652578305.

It is an arithmetic number, because the mean of its divisors is an integer number (23652578305).

Almost surely, 2^47305156609 is an apocalyptic number.

It is an amenable number.

47305156609 is a deficient number, since it is larger than the sum of its proper divisors (1).

47305156609 is an equidigital number, since it uses as much as digits as its factorization.

47305156609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 47305156609 in words is "forty-seven billion, three hundred five million, one hundred fifty-six thousand, six hundred nine".