40425445546 has 8 divisors (see below), whose sum is σ = 60754557924. Its totient is φ = 20173926240.

The previous prime is 40425445507. The next prime is 40425445559. The reversal of 40425445546 is 64554452404.

It can be written as a sum of positive squares in 2 ways, for example, as 39738429025 + 687016521 = 199345^2 + 26211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40425445546² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19396965 + ... + 19399048.

Almost surely, 2^40425445546 is an apocalyptic number.

40425445546 is a deficient number, since it is larger than the sum of its proper divisors (20329112378).

40425445546 is a wasteful number, since it uses less digits than its factorization.

40425445546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38796536.

The product of its (nonzero) digits is 1536000, while the sum is 43.

The spelling of 40425445546 in words is "forty billion, four hundred twenty-five million, four hundred forty-five thousand, five hundred forty-six".