71988578710 has 16 divisors (see below), whose sum is σ = 132024337776. Its totient is φ = 28252121248.

The previous prime is 71988578693. The next prime is 71988578737. The reversal of 71988578710 is 1787588917.

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, 67913224 + ... + 67914283.

It is an arithmetic number, because the mean of its divisors is an integer number (8251521111).

Almost surely, 2^71988578710 is an apocalyptic number.

71988578710 is a deficient number, since it is larger than the sum of its proper divisors (60035759066).

71988578710 is a wasteful number, since it uses less digits than its factorization.

71988578710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135827567.

The product of its (nonzero) digits is 7902720, while the sum is 61.

The spelling of 71988578710 in words is "seventy-one billion, nine hundred eighty-eight million, five hundred seventy-eight thousand, seven hundred ten".