71642265460 has 12 divisors (see below), whose sum is σ = 150448757508. Its totient is φ = 28656906176.

The previous prime is 71642265449. The next prime is 71642265467. The reversal of 71642265460 is 6456224617.

It can be written as a sum of positive squares in 2 ways, for example, as 36468013156 + 35174252304 = 190966^2 + 187548^2 .

It is a super-2 number, since 2×71642265460² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71642265467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1791056617 + ... + 1791056656.

It is an arithmetic number, because the mean of its divisors is an integer number (12537396459).

Almost surely, 2^71642265460 is an apocalyptic number.

It is an amenable number.

71642265460 is an abundant number, since it is smaller than the sum of its proper divisors (78806492048).

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

71642265460 is a wasteful number, since it uses less digits than its factorization.

71642265460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582113282 (or 3582113280 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 71642265460 in words is "seventy-one billion, six hundred forty-two million, two hundred sixty-five thousand, four hundred sixty".