40208578011825 has 24 divisors (see below), whose sum is σ = 66723489292416. Its totient is φ = 21365443656000.

The previous prime is 40208578011781. The next prime is 40208578011863. The reversal of 40208578011825 is 52811087580204.

It is not a de Polignac number, because 40208578011825 - 2²¹ = 40208575914673 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 989120586 + ... + 989161235.

It is an arithmetic number, because the mean of its divisors is an integer number (2780145387184).

Almost surely, 2^{40208578011825} is an apocalyptic number.

It is an amenable number.

40208578011825 is a deficient number, since it is larger than the sum of its proper divisors (26514911280591).

40208578011825 is a wasteful number, since it uses less digits than its factorization.

40208578011825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978282105 (or 1978282100 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 51.

The spelling of 40208578011825 in words is "forty trillion, two hundred eight billion, five hundred seventy-eight million, eleven thousand, eight hundred twenty-five".