40654868892 has 72 divisors (see below), whose sum is σ = 110402642448. Its totient is φ = 11594964480.

The previous prime is 40654868809. The next prime is 40654868893. The reversal of 40654868892 is 29886845604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40654868893) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 798823 + ... + 848190.

It is an arithmetic number, because the mean of its divisors is an integer number (1533370034).

Almost surely, 2^40654868892 is an apocalyptic number.

It is an amenable number.

40654868892 is an abundant number, since it is smaller than the sum of its proper divisors (69747773556).

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

40654868892 is a wasteful number, since it uses less digits than its factorization.

40654868892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647059 (or 1647046 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 40654868892 in words is "forty billion, six hundred fifty-four million, eight hundred sixty-eight thousand, eight hundred ninety-two".