71321154610 has 16 divisors (see below), whose sum is σ = 128938685400. Its totient is φ = 28403882496.

The previous prime is 71321154599. The next prime is 71321154623. The reversal of 71321154610 is 1645112317.

It can be written as a sum of positive squares in 4 ways, for example, as 62872052049 + 8449102561 = 250743^2 + 91919^2 .

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, 15570015 + ... + 15574594.

Almost surely, 2^71321154610 is an apocalyptic number.

71321154610 is a deficient number, since it is larger than the sum of its proper divisors (57617530790).

71321154610 is a wasteful number, since it uses less digits than its factorization.

71321154610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31144845.

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 71321154610 its reverse (1645112317), we get a palindrome (72966266927).

The spelling of 71321154610 in words is "seventy-one billion, three hundred twenty-one million, one hundred fifty-four thousand, six hundred ten".