71419897866 has 16 divisors (see below), whose sum is σ = 142842434688. Its totient is φ = 23806192800.

The previous prime is 71419897859. The next prime is 71419897883. The reversal of 71419897866 is 66879891417.

It is a happy number.

It is a super-2 number, since 2×71419897866² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71419897797 and 71419897806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515871 + ... + 639501.

It is an arithmetic number, because the mean of its divisors is an integer number (8927652168).

Almost surely, 2^71419897866 is an apocalyptic number.

71419897866 is an abundant number, since it is smaller than the sum of its proper divisors (71422536822).

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

71419897866 is a wasteful number, since it uses less digits than its factorization.

71419897866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219917.

The product of its digits is 36578304, while the sum is 66.

The spelling of 71419897866 in words is "seventy-one billion, four hundred nineteen million, eight hundred ninety-seven thousand, eight hundred sixty-six".