40428451688 has 32 divisors (see below), whose sum is σ = 76315543200. Its totient is φ = 20077904448.

The previous prime is 40428451667. The next prime is 40428451691. The reversal of 40428451688 is 88615482404.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1248470 + ... + 1280442.

It is an arithmetic number, because the mean of its divisors is an integer number (2384860725).

Almost surely, 2^40428451688 is an apocalyptic number.

It is an amenable number.

40428451688 is a deficient number, since it is larger than the sum of its proper divisors (35887091512).

40428451688 is a wasteful number, since it uses less digits than its factorization.

40428451688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33041 (or 33037 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 50.

The spelling of 40428451688 in words is "forty billion, four hundred twenty-eight million, four hundred fifty-one thousand, six hundred eighty-eight".