40608642456 has 24 divisors (see below), whose sum is σ = 109981740180. Its totient is φ = 13536214128.

The previous prime is 40608642397. The next prime is 40608642463. The reversal of 40608642456 is 65424680604.

40608642456 is a `hidden beast` number, since 40 + 60 + 86 + 424 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 282004390 + ... + 282004533.

Almost surely, 2^40608642456 is an apocalyptic number.

It is an amenable number.

40608642456 is an abundant number, since it is smaller than the sum of its proper divisors (69373097724).

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

40608642456 is a wasteful number, since it uses less digits than its factorization.

40608642456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564008935 (or 564008928 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 40608642456 in words is "forty billion, six hundred eight million, six hundred forty-two thousand, four hundred fifty-six".