605749902640 has 80 divisors (see below), whose sum is σ = 1461106483200. Its totient is φ = 233305332480.

The previous prime is 605749902631. The next prime is 605749902649. The reversal of 605749902640 is 46209947506.

It is an interprime number because it is at equal distance from previous prime (605749902631) and next prime (605749902649).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (605749902649) 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 15 ways as a sum of consecutive naturals, for example, 120184 + ... + 1107223.

It is an arithmetic number, because the mean of its divisors is an integer number (18263831040).

Almost surely, 2^605749902640 is an apocalyptic number.

It is an amenable number.

605749902640 is an abundant number, since it is smaller than the sum of its proper divisors (855356580560).

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

605749902640 is a wasteful number, since it uses less digits than its factorization.

605749902640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227650 (or 1227644 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 605749902640 in words is "six hundred five billion, seven hundred forty-nine million, nine hundred two thousand, six hundred forty".