87487473650305 has 4 divisors (see below), whose sum is σ = 104984968380372. Its totient is φ = 69989978920240.

The previous prime is 87487473650287. The next prime is 87487473650309. The reversal of 87487473650305 is 50305637478478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26134905797361 + 61352567852944 = 5112231^2 + 7832788^2 .

It is not a de Polignac number, because 87487473650305 - 2⁵ = 87487473650273 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87487473650309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8748747365026 + ... + 8748747365035.

It is an arithmetic number, because the mean of its divisors is an integer number (26246242095093).

Almost surely, 2^{87487473650305} is an apocalyptic number.

It is an amenable number.

87487473650305 is a deficient number, since it is larger than the sum of its proper divisors (17497494730067).

87487473650305 is a wasteful number, since it uses less digits than its factorization.

87487473650305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17497494730066.

The product of its (nonzero) digits is 474163200, while the sum is 67.

The spelling of 87487473650305 in words is "eighty-seven trillion, four hundred eighty-seven billion, four hundred seventy-three million, six hundred fifty thousand, three hundred five".