871511116950 has 72 divisors (see below), whose sum is σ = 2342906282496. Its totient is φ = 232259400000.

The previous prime is 871511116933. The next prime is 871511116961. The reversal of 871511116950 is 59611115178.

871511116950 is a `hidden beast` number, since 8 + 71 + 511 + 1 + 1 + 69 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 871511116896 and 871511116905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 132075 + ... + 1326825.

Almost surely, 2^871511116950 is an apocalyptic number.

871511116950 is an abundant number, since it is smaller than the sum of its proper divisors (1471395165546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871511116950 is a wasteful number, since it uses less digits than its factorization.

871511116950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196390 (or 1196382 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 45.

The spelling of 871511116950 in words is "eight hundred seventy-one billion, five hundred eleven million, one hundred sixteen thousand, nine hundred fifty".