71864509460 has 12 divisors (see below), whose sum is σ = 150915469908. Its totient is φ = 28745803776.

The previous prime is 71864509459. The next prime is 71864509463. The reversal of 71864509460 is 6490546817.

It can be written as a sum of positive squares in 2 ways, for example, as 9550371076 + 62314138384 = 97726^2 + 249628^2 .

It is a super-3 number, since 3×71864509460³ (a number of 34 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 71864509399 and 71864509408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71864509463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796612717 + ... + 1796612756.

It is an arithmetic number, because the mean of its divisors is an integer number (12576289159).

Almost surely, 2^71864509460 is an apocalyptic number.

It is an amenable number.

71864509460 is an abundant number, since it is smaller than the sum of its proper divisors (79050960448).

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

71864509460 is a wasteful number, since it uses less digits than its factorization.

71864509460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593225482 (or 3593225480 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 71864509460 in words is "seventy-one billion, eight hundred sixty-four million, five hundred nine thousand, four hundred sixty".