71384889942 has 12 divisors (see below), whose sum is σ = 154667261580. Its totient is φ = 23794963308.

The previous prime is 71384889899. The next prime is 71384889943. The reversal of 71384889942 is 24998848317.

It is a self number, because there is not a number n which added to its sum of digits gives 71384889942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71384889943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1982913592 + ... + 1982913627.

It is an arithmetic number, because the mean of its divisors is an integer number (12888938465).

Almost surely, 2^71384889942 is an apocalyptic number.

71384889942 is an abundant number, since it is smaller than the sum of its proper divisors (83282371638).

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

71384889942 is a wasteful number, since it uses less digits than its factorization.

71384889942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965827227 (or 3965827224 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 71384889942 in words is "seventy-one billion, three hundred eighty-four million, eight hundred eighty-nine thousand, nine hundred forty-two".