683506779400 has 48 divisors (see below), whose sum is σ = 1632103367940. Its totient is φ = 266013446400.

The previous prime is 683506779359. The next prime is 683506779401. The reversal of 683506779400 is 4977605386.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 391848456484 + 291658322916 = 625978^2 + 540054^2 .

It is not an unprimeable number, because it can be changed into a prime (683506779401) 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 11 ways as a sum of consecutive naturals, for example, 46175491 + ... + 46190290.

Almost surely, 2^683506779400 is an apocalyptic number.

It is an amenable number.

683506779400 is an abundant number, since it is smaller than the sum of its proper divisors (948596588540).

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

683506779400 is a wasteful number, since it uses less digits than its factorization.

683506779400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92365834 (or 92365825 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 683506779400 in words is "six hundred eighty-three billion, five hundred six million, seven hundred seventy-nine thousand, four hundred".