640483006757 has 16 divisors (see below), whose sum is σ = 708836144640. Its totient is φ = 573871359600.

The previous prime is 640483006741. The next prime is 640483006763. The reversal of 640483006757 is 757600384046.

It is not a de Polignac number, because 640483006757 - 2⁴ = 640483006741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640423006757) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1100507 + ... + 1578632.

It is an arithmetic number, because the mean of its divisors is an integer number (44302259040).

Almost surely, 2^640483006757 is an apocalyptic number.

It is an amenable number.

640483006757 is a deficient number, since it is larger than the sum of its proper divisors (68353137883).

640483006757 is a wasteful number, since it uses less digits than its factorization.

640483006757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679464.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 640483006757 in words is "six hundred forty billion, four hundred eighty-three million, six thousand, seven hundred fifty-seven".