71390878576 has 10 divisors (see below), whose sum is σ = 138319827272. Its totient is φ = 35695439280.

The previous prime is 71390878571. The next prime is 71390878591. The reversal of 71390878576 is 67587809317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71390878571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2230964940 + ... + 2230964971.

Almost surely, 2^71390878576 is an apocalyptic number.

It is an amenable number.

71390878576 is a deficient number, since it is larger than the sum of its proper divisors (66928948696).

71390878576 is a wasteful number, since it uses less digits than its factorization.

71390878576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461929919 (or 4461929913 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 61.

The spelling of 71390878576 in words is "seventy-one billion, three hundred ninety million, eight hundred seventy-eight thousand, five hundred seventy-six".