87354242105 has 16 divisors (see below), whose sum is σ = 116781270480. Its totient is φ = 62283341568.

The previous prime is 87354242089. The next prime is 87354242117. The reversal of 87354242105 is 50124245378.

It can be written as a sum of positive squares in 8 ways, for example, as 487879744 + 86866362361 = 22088^2 + 294731^2 .

It is a cyclic number.

It is not a de Polignac number, because 87354242105 - 2⁴ = 87354242089 is a prime.

It is a super-2 number, since 2×87354242105² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23169002 + ... + 23172771.

It is an arithmetic number, because the mean of its divisors is an integer number (7298829405).

Almost surely, 2^87354242105 is an apocalyptic number.

It is an amenable number.

87354242105 is a deficient number, since it is larger than the sum of its proper divisors (29427028375).

87354242105 is a wasteful number, since it uses less digits than its factorization.

87354242105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46341820.

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 87354242105 in words is "eighty-seven billion, three hundred fifty-four million, two hundred forty-two thousand, one hundred five".