71690238668 has 12 divisors (see below), whose sum is σ = 126257013792. Its totient is φ = 35616806160.

The previous prime is 71690238667. The next prime is 71690238691. The reversal of 71690238668 is 86683209617.

It is not an unprimeable number, because it can be changed into a prime (71690238661) 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, 57077588 + ... + 57078843.

It is an arithmetic number, because the mean of its divisors is an integer number (10521417816).

Almost surely, 2^71690238668 is an apocalyptic number.

It is an amenable number.

71690238668 is a deficient number, since it is larger than the sum of its proper divisors (54566775124).

71690238668 is a wasteful number, since it uses less digits than its factorization.

71690238668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114156592 (or 114156590 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 71690238668 in words is "seventy-one billion, six hundred ninety million, two hundred thirty-eight thousand, six hundred sixty-eight".