71356803850 has 48 divisors (see below), whose sum is σ = 143958582936. Its totient is φ = 26208512000.

The previous prime is 71356803829. The next prime is 71356803851. The reversal of 71356803850 is 5830865317.

It can be written as a sum of positive squares in 12 ways, for example, as 933974721 + 70422829129 = 30561^2 + 265373^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71356803850.

It is not an unprimeable number, because it can be changed into a prime (71356803851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 988921 + ... + 1058620.

Almost surely, 2^71356803850 is an apocalyptic number.

71356803850 is an abundant number, since it is smaller than the sum of its proper divisors (72601779086).

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

71356803850 is a wasteful number, since it uses less digits than its factorization.

71356803850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047611 (or 2047606 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 71356803850 in words is "seventy-one billion, three hundred fifty-six million, eight hundred three thousand, eight hundred fifty".