87748104361 has 4 divisors (see below), whose sum is σ = 88524636372. Its totient is φ = 86971572352.

The previous prime is 87748104343. The next prime is 87748104407. The reversal of 87748104361 is 16340184778.

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 12092301225 + 75655803136 = 109965^2 + 275056^2 .

It is a cyclic number.

It is not a de Polignac number, because 87748104361 - 2⁷ = 87748104233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87748174361) 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 3 ways as a sum of consecutive naturals, for example, 388265836 + ... + 388266061.

It is an arithmetic number, because the mean of its divisors is an integer number (22131159093).

Almost surely, 2^87748104361 is an apocalyptic number.

It is an amenable number.

87748104361 is a deficient number, since it is larger than the sum of its proper divisors (776532011).

87748104361 is a wasteful number, since it uses less digits than its factorization.

87748104361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776532010.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 87748104361 in words is "eighty-seven billion, seven hundred forty-eight million, one hundred four thousand, three hundred sixty-one".