71428586500 has 24 divisors (see below), whose sum is σ = 156000034008. Its totient is φ = 28571434400.

The previous prime is 71428586477. The next prime is 71428586507. The reversal of 71428586500 is 568582417.

It can be written as a sum of positive squares in 4 ways, for example, as 233539524 + 71195046976 = 15282^2 + 266824^2 .

It is not an unprimeable number, because it can be changed into a prime (71428586507) 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, 71428087 + ... + 71429086.

It is an arithmetic number, because the mean of its divisors is an integer number (6500001417).

Almost surely, 2^71428586500 is an apocalyptic number.

It is an amenable number.

71428586500 is an abundant number, since it is smaller than the sum of its proper divisors (84571447508).

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

71428586500 is a wasteful number, since it uses less digits than its factorization.

71428586500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142857192 (or 142857180 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 71428586500 in words is "seventy-one billion, four hundred twenty-eight million, five hundred eighty-six thousand, five hundred".