71328770068 has 24 divisors (see below), whose sum is σ = 133176947904. Its totient is φ = 33310243200.

The previous prime is 71328770063. The next prime is 71328770083. The reversal of 71328770068 is 86007782317.

It is a super-2 number, since 2×71328770068² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71328770063) 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, 3994728 + ... + 4012543.

It is an arithmetic number, because the mean of its divisors is an integer number (5549039496).

Almost surely, 2^71328770068 is an apocalyptic number.

It is an amenable number.

71328770068 is a deficient number, since it is larger than the sum of its proper divisors (61848177836).

71328770068 is a wasteful number, since it uses less digits than its factorization.

71328770068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007423 (or 8007421 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 71328770068 in words is "seventy-one billion, three hundred twenty-eight million, seven hundred seventy thousand, sixty-eight".