71478333612 has 288 divisors, whose sum is σ = 214300090368. Its totient is φ = 19668759552.

The previous prime is 71478333571. The next prime is 71478333613. The reversal of 71478333612 is 21633387417.

It is not an unprimeable number, because it can be changed into a prime (71478333613) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 306773848 + ... + 306774080.

It is an arithmetic number, because the mean of its divisors is an integer number (744097536).

Almost surely, 2^71478333612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71478333612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107150045184).

71478333612 is an abundant number, since it is smaller than the sum of its proper divisors (142821756756).

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

71478333612 is a wasteful number, since it uses less digits than its factorization.

71478333612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 71478333612 in words is "seventy-one billion, four hundred seventy-eight million, three hundred thirty-three thousand, six hundred twelve".