87013353961 has 4 divisors (see below), whose sum is σ = 87023147332. Its totient is φ = 87003560592.

The previous prime is 87013353937. The next prime is 87013353983. The reversal of 87013353961 is 16935331078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16935331078 = 2 ⋅8467665539.

It can be written as a sum of positive squares in 2 ways, for example, as 5377435561 + 81635918400 = 73331^2 + 285720^2 .

It is a cyclic number.

It is not a de Polignac number, because 87013353961 - 2⁵ = 87013353929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87013323961) 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, 4883346 + ... + 4901131.

It is an arithmetic number, because the mean of its divisors is an integer number (21755786833).

Almost surely, 2^87013353961 is an apocalyptic number.

It is an amenable number.

87013353961 is a deficient number, since it is larger than the sum of its proper divisors (9793371).

87013353961 is an equidigital number, since it uses as much as digits as its factorization.

87013353961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793370.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 87013353961 in words is "eighty-seven billion, thirteen million, three hundred fifty-three thousand, nine hundred sixty-one".