40818686020 has 24 divisors (see below), whose sum is σ = 97964846784. Its totient is φ = 13994978016.

The previous prime is 40818686003. The next prime is 40818686039. The reversal of 40818686020 is 2068681804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145780882 + ... + 145781161.

It is an arithmetic number, because the mean of its divisors is an integer number (4081868616).

Almost surely, 2^40818686020 is an apocalyptic number.

It is an amenable number.

40818686020 is an abundant number, since it is smaller than the sum of its proper divisors (57146160764).

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

40818686020 is a wasteful number, since it uses less digits than its factorization.

40818686020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291562059 (or 291562057 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 40818686020 in words is "forty billion, eight hundred eighteen million, six hundred eighty-six thousand, twenty".