71219889910 has 16 divisors (see below), whose sum is σ = 138057017616. Its totient is φ = 26296574688.

The previous prime is 71219889901. The next prime is 71219889971. The reversal of 71219889910 is 1998891217.

It is a congruent number.

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, 273922524 + ... + 273922783.

It is an arithmetic number, because the mean of its divisors is an integer number (8628563601).

Almost surely, 2^71219889910 is an apocalyptic number.

71219889910 is a deficient number, since it is larger than the sum of its proper divisors (66837127706).

71219889910 is a wasteful number, since it uses less digits than its factorization.

71219889910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547845327.

The product of its (nonzero) digits is 653184, while the sum is 55.

The spelling of 71219889910 in words is "seventy-one billion, two hundred nineteen million, eight hundred eighty-nine thousand, nine hundred ten".