71646838248 has 32 divisors (see below), whose sum is σ = 179185592160. Its totient is φ = 23873146560.

The previous prime is 71646838247. The next prime is 71646838271. The reversal of 71646838248 is 84283864617.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71646838243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506590 + ... + 632397.

It is an arithmetic number, because the mean of its divisors is an integer number (5599549755).

Almost surely, 2^71646838248 is an apocalyptic number.

It is an amenable number.

71646838248 is an abundant number, since it is smaller than the sum of its proper divisors (107538753912).

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

71646838248 is a wasteful number, since it uses less digits than its factorization.

71646838248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141617 (or 1141613 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 57.

The spelling of 71646838248 in words is "seventy-one billion, six hundred forty-six million, eight hundred thirty-eight thousand, two hundred forty-eight".