640224076372 has 24 divisors (see below), whose sum is σ = 1134331732800. Its totient is φ = 316137873216.

The previous prime is 640224076367. The next prime is 640224076411. The reversal of 640224076372 is 273670422046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773058 + ... + 1370425.

It is an arithmetic number, because the mean of its divisors is an integer number (47263822200).

Almost surely, 2^640224076372 is an apocalyptic number.

It is an amenable number.

640224076372 is a deficient number, since it is larger than the sum of its proper divisors (494107656428).

640224076372 is a wasteful number, since it uses less digits than its factorization.

640224076372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144415 (or 2144413 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 640224076372 in words is "six hundred forty billion, two hundred twenty-four million, seventy-six thousand, three hundred seventy-two".