71986070500 has 24 divisors (see below), whose sum is σ = 157217579064. Its totient is φ = 28794428000.

The previous prime is 71986070489. The next prime is 71986070503. The reversal of 71986070500 is 507068917.

It can be written as a sum of positive squares in 4 ways, for example, as 4140407716 + 67845662784 = 64346^2 + 260472^2 .

It is not an unprimeable number, because it can be changed into a prime (71986070503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71985571 + ... + 71986570.

It is an arithmetic number, because the mean of its divisors is an integer number (6550732461).

Almost surely, 2^71986070500 is an apocalyptic number.

It is an amenable number.

71986070500 is an abundant number, since it is smaller than the sum of its proper divisors (85231508564).

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

71986070500 is a wasteful number, since it uses less digits than its factorization.

71986070500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143972160 (or 143972148 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 71986070500 in words is "seventy-one billion, nine hundred eighty-six million, seventy thousand, five hundred".