40811563850 has 12 divisors (see below), whose sum is σ = 75909508854. Its totient is φ = 16324625520.

The previous prime is 40811563801. The next prime is 40811563921. The reversal of 40811563850 is 5836511804.

It can be written as a sum of positive squares in 3 ways, for example, as 34014056041 + 6797507809 = 184429^2 + 82447^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40811563798 and 40811563807.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 408115589 + ... + 408115688.

Almost surely, 2^40811563850 is an apocalyptic number.

40811563850 is a deficient number, since it is larger than the sum of its proper divisors (35097945004).

40811563850 is a wasteful number, since it uses less digits than its factorization.

40811563850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816231289 (or 816231284 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 40811563850 in words is "forty billion, eight hundred eleven million, five hundred sixty-three thousand, eight hundred fifty".