40685657260 has 24 divisors (see below), whose sum is σ = 89154658656. Its totient is φ = 15566686080.

The previous prime is 40685657197. The next prime is 40685657273. The reversal of 40685657260 is 6275658604.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44223081 + ... + 44224000.

It is an arithmetic number, because the mean of its divisors is an integer number (3714777444).

Almost surely, 2^40685657260 is an apocalyptic number.

It is an amenable number.

40685657260 is an abundant number, since it is smaller than the sum of its proper divisors (48469001396).

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

40685657260 is a wasteful number, since it uses less digits than its factorization.

40685657260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88447113 (or 88447111 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 40685657260 in words is "forty billion, six hundred eighty-five million, six hundred fifty-seven thousand, two hundred sixty".