71969729373 has 24 divisors (see below), whose sum is σ = 106526137536. Its totient is φ = 46794484800.

The previous prime is 71969729353. The next prime is 71969729389. The reversal of 71969729373 is 37392796917.

71969729373 is a `hidden beast` number, since 7 + 196 + 9 + 72 + 9 + 373 = 666.

It is not a de Polignac number, because 71969729373 - 2¹² = 71969725277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71969729373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71969729353) 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, 1177186 + ... + 1236812.

It is an arithmetic number, because the mean of its divisors is an integer number (4438589064).

Almost surely, 2^71969729373 is an apocalyptic number.

It is an amenable number.

71969729373 is a deficient number, since it is larger than the sum of its proper divisors (34556408163).

71969729373 is a wasteful number, since it uses less digits than its factorization.

71969729373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62945 (or 62942 counting only the distinct ones).

The product of its digits is 27005076, while the sum is 63.

The spelling of 71969729373 in words is "seventy-one billion, nine hundred sixty-nine million, seven hundred twenty-nine thousand, three hundred seventy-three".