71447443400 has 24 divisors (see below), whose sum is σ = 166115306370. Its totient is φ = 28578977280.

The previous prime is 71447443399. The next prime is 71447443423. The reversal of 71447443400 is 434474417.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 56969097124 + 14478346276 = 238682^2 + 120326^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178618409 + ... + 178618808.

Almost surely, 2^71447443400 is an apocalyptic number.

It is an amenable number.

71447443400 is an abundant number, since it is smaller than the sum of its proper divisors (94667862970).

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

71447443400 is a wasteful number, since it uses less digits than its factorization.

71447443400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357237233 (or 357237224 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 38.

The spelling of 71447443400 in words is "seventy-one billion, four hundred forty-seven million, four hundred forty-three thousand, four hundred".