683749319940 has 72 divisors (see below), whose sum is σ = 2074170815808. Its totient is φ = 182321616960.

The previous prime is 683749319899. The next prime is 683749319941. The reversal of 683749319940 is 49913947386.

683749319940 is a `hidden beast` number, since 68 + 37 + 493 + 19 + 9 + 40 = 666.

It is not an unprimeable number, because it can be changed into a prime (683749319941) 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 23 ways as a sum of consecutive naturals, for example, 2950329 + ... + 3173631.

Almost surely, 2^683749319940 is an apocalyptic number.

683749319940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

683749319940 is an abundant number, since it is smaller than the sum of its proper divisors (1390421495868).

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

683749319940 is a wasteful number, since it uses less digits than its factorization.

683749319940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240329 (or 240324 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 683749319940 in words is "six hundred eighty-three billion, seven hundred forty-nine million, three hundred nineteen thousand, nine hundred forty".