71653414240 has 48 divisors (see below), whose sum is σ = 179238915072. Its totient is φ = 26975401984.

The previous prime is 71653414199. The next prime is 71653414241. The reversal of 71653414240 is 4241435617.

It is a self number, because there is not a number n which added to its sum of digits gives 71653414240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71653414241) 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, 13168864 + ... + 13174303.

It is an arithmetic number, because the mean of its divisors is an integer number (3734144064).

Almost surely, 2^71653414240 is an apocalyptic number.

It is an amenable number.

71653414240 is an abundant number, since it is smaller than the sum of its proper divisors (107585500832).

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

71653414240 is a wasteful number, since it uses less digits than its factorization.

71653414240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26343199 (or 26343191 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 71653414240 its reverse (4241435617), we get a palindrome (75894849857).

The spelling of 71653414240 in words is "seventy-one billion, six hundred fifty-three million, four hundred fourteen thousand, two hundred forty".