40814573850 has 72 divisors (see below), whose sum is σ = 109949588892. Its totient is φ = 10854662400.

The previous prime is 40814573837. The next prime is 40814573857. The reversal of 40814573850 is 5837541804.

40814573850 is a `hidden beast` number, since 40 + 81 + 457 + 3 + 85 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 9471766329 + 31342807521 = 97323^2 + 177039^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40814573796 and 40814573805.

It is not an unprimeable number, because it can be changed into a prime (40814573857) 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 35 ways as a sum of consecutive naturals, for example, 46270 + ... + 289430.

Almost surely, 2^40814573850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40814573850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54974794446).

40814573850 is an abundant number, since it is smaller than the sum of its proper divisors (69135015042).

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

40814573850 is a wasteful number, since it uses less digits than its factorization.

40814573850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243552 (or 243544 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 40814573850 in words is "forty billion, eight hundred fourteen million, five hundred seventy-three thousand, eight hundred fifty".