40999999999806 has 96 divisors (see below), whose sum is σ = 90746091072000. Its totient is φ = 13374520233984.

The previous prime is 40999999999733. The next prime is 40999999999831. The reversal of 40999999999806 is 60899999999904.

It is a junction number, because it is equal to n+sod(n) for n = 40999999999698 and 40999999999707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 844935861 + ... + 844984383.

It is an arithmetic number, because the mean of its divisors is an integer number (945271782000).

Almost surely, 2^{40999999999806} is an apocalyptic number.

40999999999806 is an abundant number, since it is smaller than the sum of its proper divisors (49746091072194).

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

40999999999806 is a wasteful number, since it uses less digits than its factorization.

40999999999806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52158 (or 52155 counting only the distinct ones).

The product of its (nonzero) digits is 74384733888, while the sum is 99.

The spelling of 40999999999806 in words is "forty trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred six".