71057703729 has 16 divisors (see below), whose sum is σ = 96662991744. Its totient is φ = 46418016000.

The previous prime is 71057703719. The next prime is 71057703733. The reversal of 71057703729 is 92730775017.

It is not a de Polignac number, because 71057703729 - 2⁵ = 71057703697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71057703719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690072 + ... + 786329.

It is an arithmetic number, because the mean of its divisors is an integer number (6041436984).

Almost surely, 2^71057703729 is an apocalyptic number.

It is an amenable number.

71057703729 is a deficient number, since it is larger than the sum of its proper divisors (25605288015).

71057703729 is a wasteful number, since it uses less digits than its factorization.

71057703729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476728.

The product of its (nonzero) digits is 648270, while the sum is 48.

The spelling of 71057703729 in words is "seventy-one billion, fifty-seven million, seven hundred three thousand, seven hundred twenty-nine".