40688623837 has 8 divisors (see below), whose sum is σ = 43091136000. Its totient is φ = 38287118784.

The previous prime is 40688623771. The next prime is 40688623841. The reversal of 40688623837 is 73832688604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40688623837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40688623897) by changing a digit.

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, 167787 + ... + 330952.

It is an arithmetic number, because the mean of its divisors is an integer number (5386392000).

Almost surely, 2^40688623837 is an apocalyptic number.

It is an amenable number.

40688623837 is a deficient number, since it is larger than the sum of its proper divisors (2402512163).

40688623837 is a wasteful number, since it uses less digits than its factorization.

40688623837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503555.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 40688623837 in words is "forty billion, six hundred eighty-eight million, six hundred twenty-three thousand, eight hundred thirty-seven".