87109211962 has 8 divisors (see below), whose sum is σ = 134195272596. Its totient is φ = 42377454432.

The previous prime is 87109211957. The next prime is 87109211963. The reversal of 87109211962 is 26911290178.

It can be written as a sum of positive squares in 2 ways, for example, as 85925783161 + 1183428801 = 293131^2 + 34401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (87109211963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588575683 + ... + 588575830.

Almost surely, 2^87109211962 is an apocalyptic number.

87109211962 is a deficient number, since it is larger than the sum of its proper divisors (47086060634).

87109211962 is a wasteful number, since it uses less digits than its factorization.

87109211962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177151552.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 87109211962 in words is "eighty-seven billion, one hundred nine million, two hundred eleven thousand, nine hundred sixty-two".