87758613650 has 12 divisors (see below), whose sum is σ = 163231021482. Its totient is φ = 35103445440.

The previous prime is 87758613643. The next prime is 87758613653. The reversal of 87758613650 is 5631685778.

It can be written as a sum of positive squares in 3 ways, for example, as 73641134161 + 14117479489 = 271369^2 + 118817^2 .

It is not an unprimeable number, because it can be changed into a prime (87758613653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 877586087 + ... + 877586186.

Almost surely, 2^87758613650 is an apocalyptic number.

87758613650 is a deficient number, since it is larger than the sum of its proper divisors (75472407832).

87758613650 is a wasteful number, since it uses less digits than its factorization.

87758613650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755172285 (or 1755172280 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 87758613650 in words is "eighty-seven billion, seven hundred fifty-eight million, six hundred thirteen thousand, six hundred fifty".