71445878961896 has 32 divisors (see below), whose sum is σ = 135250240570560. Its totient is φ = 35379633391872.

The previous prime is 71445878961889. The next prime is 71445878961911. The reversal of 71445878961896 is 69816987854417.

It is a super-3 number, since 3×71445878961896³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29149430 + ... + 31505253.

It is an arithmetic number, because the mean of its divisors is an integer number (4226570017830).

Almost surely, 2^{71445878961896} is an apocalyptic number.

It is an amenable number.

71445878961896 is a deficient number, since it is larger than the sum of its proper divisors (63804361608664).

71445878961896 is a wasteful number, since it uses less digits than its factorization.

71445878961896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60656105 (or 60656101 counting only the distinct ones).

The product of its digits is 5852528640, while the sum is 83.

The spelling of 71445878961896 in words is "seventy-one trillion, four hundred forty-five billion, eight hundred seventy-eight million, nine hundred sixty-one thousand, eight hundred ninety-six".