40525906208 has 54 divisors (see below), whose sum is σ = 84250602009. Its totient is φ = 19186232832.

The previous prime is 40525906177. The next prime is 40525906283. The reversal of 40525906208 is 80260952504.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 26774122384 + 13751783824 = 163628^2 + 117268^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=142348.

It is a super-2 number, since 2×40525906208² (a number of 22 digits) contains 22 as substring.

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 8 ways as a sum of consecutive naturals, for example, 21635960 + ... + 21637832.

Almost surely, 2^40525906208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40525906208

40525906208 is an abundant number, since it is smaller than the sum of its proper divisors (43724695801).

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

40525906208 is an frugal number, since it uses more digits than its factorization.

40525906208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 40525906208 in words is "forty billion, five hundred twenty-five million, nine hundred six thousand, two hundred eight".