71810284872 has 16 divisors (see below), whose sum is σ = 179525712240. Its totient is φ = 23936761616.

The previous prime is 71810284853. The next prime is 71810284879. The reversal of 71810284872 is 27848201817.

It is not an unprimeable number, because it can be changed into a prime (71810284879) 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, 1496047578 + ... + 1496047625.

It is an arithmetic number, because the mean of its divisors is an integer number (11220357015).

Almost surely, 2^71810284872 is an apocalyptic number.

It is an amenable number.

71810284872 is an abundant number, since it is smaller than the sum of its proper divisors (107715427368).

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

71810284872 is a wasteful number, since it uses less digits than its factorization.

71810284872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992095212 (or 2992095208 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 48.

The spelling of 71810284872 in words is "seventy-one billion, eight hundred ten million, two hundred eighty-four thousand, eight hundred seventy-two".