87758952305 has 4 divisors (see below), whose sum is σ = 105310742772. Its totient is φ = 70207161840.

The previous prime is 87758952277. The next prime is 87758952311. The reversal of 87758952305 is 50325985778.

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 16947613489 + 70811338816 = 130183^2 + 266104^2 .

It is not a de Polignac number, because 87758952305 - 2⁶ = 87758952241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8775895226 + ... + 8775895235.

It is an arithmetic number, because the mean of its divisors is an integer number (26327685693).

Almost surely, 2^87758952305 is an apocalyptic number.

It is an amenable number.

87758952305 is a deficient number, since it is larger than the sum of its proper divisors (17551790467).

87758952305 is a wasteful number, since it uses less digits than its factorization.

87758952305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17551790466.

The product of its (nonzero) digits is 21168000, while the sum is 59.

The spelling of 87758952305 in words is "eighty-seven billion, seven hundred fifty-eight million, nine hundred fifty-two thousand, three hundred five".