71429749064 has 16 divisors (see below), whose sum is σ = 134203558320. Its totient is φ = 35642133520.

The previous prime is 71429749057. The next prime is 71429749109. The reversal of 71429749064 is 46094792417.

It is a junction number, because it is equal to n+sod(n) for n = 71429748997 and 71429749015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9088454 + ... + 9096309.

It is an arithmetic number, because the mean of its divisors is an integer number (8387722395).

Almost surely, 2^71429749064 is an apocalyptic number.

It is an amenable number.

71429749064 is a deficient number, since it is larger than the sum of its proper divisors (62773809256).

71429749064 is a wasteful number, since it uses less digits than its factorization.

71429749064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18185260 (or 18185256 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 71429749064 in words is "seventy-one billion, four hundred twenty-nine million, seven hundred forty-nine thousand, sixty-four".