871913039040 has 112 divisors (see below), whose sum is σ = 3075915473760. Its totient is φ = 232510141440.

The previous prime is 871913039021. The next prime is 871913039051. The reversal of 871913039040 is 40930319178.

871913039040 is a `hidden beast` number, since 8 + 7 + 191 + 30 + 390 + 40 = 666.

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

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, 50449291 + ... + 50466570.

Almost surely, 2^871913039040 is an apocalyptic number.

871913039040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

871913039040 is an abundant number, since it is smaller than the sum of its proper divisors (2204002434720).

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

871913039040 is a wasteful number, since it uses less digits than its factorization.

871913039040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100915887 (or 100915871 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 871913039040 in words is "eight hundred seventy-one billion, nine hundred thirteen million, thirty-nine thousand, forty".