71074225278 has 128 divisors (see below), whose sum is σ = 182714019840. Its totient is φ = 20059958880.

The previous prime is 71074225253. The next prime is 71074225279. The reversal of 71074225278 is 87252247017.

71074225278 is a `hidden beast` number, since 7 + 107 + 422 + 52 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71074225279) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11237425 + ... + 11243747.

It is an arithmetic number, because the mean of its divisors is an integer number (1427453280).

Almost surely, 2^71074225278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71074225278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91357009920).

71074225278 is an abundant number, since it is smaller than the sum of its proper divisors (111639794562).

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

71074225278 is a wasteful number, since it uses less digits than its factorization.

71074225278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6699 (or 6693 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 71074225278 in words is "seventy-one billion, seventy-four million, two hundred twenty-five thousand, two hundred seventy-eight".