40818634625 has 16 divisors (see below), whose sum is σ = 52698269520. Its totient is φ = 31528873600.

The previous prime is 40818634613. The next prime is 40818634709. The reversal of 40818634625 is 52643681804.

40818634625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 16887782209 + 23930852416 = 129953^2 + 154696^2 .

It is not a de Polignac number, because 40818634625 - 2⁶ = 40818634561 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40818634625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5626532 + ... + 5633781.

It is an arithmetic number, because the mean of its divisors is an integer number (3293641845).

Almost surely, 2^40818634625 is an apocalyptic number.

It is an amenable number.

40818634625 is a deficient number, since it is larger than the sum of its proper divisors (11879634895).

40818634625 is a wasteful number, since it uses less digits than its factorization.

40818634625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11260357 (or 11260347 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 40818634625 in words is "forty billion, eight hundred eighteen million, six hundred thirty-four thousand, six hundred twenty-five".