71197698338 has 16 divisors (see below), whose sum is σ = 116728261440. Its totient is φ = 32370020496.

The previous prime is 71197698331. The next prime is 71197698343. The reversal of 71197698338 is 83389679117.

It is a super-2 number, since 2×71197698338² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71197698331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20433878 + ... + 20437361.

It is an arithmetic number, because the mean of its divisors is an integer number (7295516340).

Almost surely, 2^71197698338 is an apocalyptic number.

71197698338 is a deficient number, since it is larger than the sum of its proper divisors (45530563102).

71197698338 is a wasteful number, since it uses less digits than its factorization.

71197698338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40871321.

The product of its digits is 13716864, while the sum is 62.

The spelling of 71197698338 in words is "seventy-one billion, one hundred ninety-seven million, six hundred ninety-eight thousand, three hundred thirty-eight".