40681109452 has 12 divisors (see below), whose sum is σ = 71221908520. Its totient is φ = 20331992736.

The previous prime is 40681109449. The next prime is 40681109507. The reversal of 40681109452 is 25490118604.

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 3 ways as a sum of consecutive naturals, for example, 2129802 + ... + 2148817.

Almost surely, 2^40681109452 is an apocalyptic number.

It is an amenable number.

40681109452 is a deficient number, since it is larger than the sum of its proper divisors (30540799068).

40681109452 is a wasteful number, since it uses less digits than its factorization.

40681109452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281000 (or 4280998 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 40681109452 in words is "forty billion, six hundred eighty-one million, one hundred nine thousand, four hundred fifty-two".