71278795368 has 96 divisors (see below), whose sum is σ = 218396374560. Its totient is φ = 21599628480.

The previous prime is 71278795337. The next prime is 71278795369. The reversal of 71278795368 is 86359787217.

71278795368 is a `hidden beast` number, since 7 + 1 + 27 + 8 + 79 + 536 + 8 = 666.

It is a super-2 number, since 2×71278795368² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71278795369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1645255 + ... + 1688022.

It is an arithmetic number, because the mean of its divisors is an integer number (2274962235).

Almost surely, 2^71278795368 is an apocalyptic number.

It is an amenable number.

71278795368 is an abundant number, since it is smaller than the sum of its proper divisors (147117579192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71278795368 is a wasteful number, since it uses less digits than its factorization.

71278795368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333309 (or 3333293 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The spelling of 71278795368 in words is "seventy-one billion, two hundred seventy-eight million, seven hundred ninety-five thousand, three hundred sixty-eight".