871900909604 has 24 divisors (see below), whose sum is σ = 1586370877728. Its totient is φ = 418969488960.

The previous prime is 871900909597. The next prime is 871900909619. The reversal of 871900909604 is 406909009178.

It is a happy number.

It is a super-2 number, since 2×871900909604² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39664154 + ... + 39686129.

It is an arithmetic number, because the mean of its divisors is an integer number (66098786572).

Almost surely, 2^871900909604 is an apocalyptic number.

It is an amenable number.

871900909604 is a deficient number, since it is larger than the sum of its proper divisors (714469968124).

871900909604 is a wasteful number, since it uses less digits than its factorization.

871900909604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79350395 (or 79350393 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 871900909604 in words is "eight hundred seventy-one billion, nine hundred million, nine hundred nine thousand, six hundred four".