40890868758 has 24 divisors (see below), whose sum is σ = 89919226488. Its totient is φ = 13426852032.

The previous prime is 40890868717. The next prime is 40890868763. The reversal of 40890868758 is 85786809804.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40890868695 and 40890868704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16951891 + ... + 16954302.

It is an arithmetic number, because the mean of its divisors is an integer number (3746634437).

Almost surely, 2^40890868758 is an apocalyptic number.

40890868758 is an abundant number, since it is smaller than the sum of its proper divisors (49028357730).

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

40890868758 is a wasteful number, since it uses less digits than its factorization.

40890868758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33906268 (or 33906265 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 63.

The spelling of 40890868758 in words is "forty billion, eight hundred ninety million, eight hundred sixty-eight thousand, seven hundred fifty-eight".