40909495918 has 8 divisors (see below), whose sum is σ = 62791319448. Its totient is φ = 19979056104.

The previous prime is 40909495877. The next prime is 40909495987. The reversal of 40909495918 is 81959490904.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237845821 + ... + 237845992.

It is an arithmetic number, because the mean of its divisors is an integer number (7848914931).

Almost surely, 2^40909495918 is an apocalyptic number.

40909495918 is a deficient number, since it is larger than the sum of its proper divisors (21881823530).

40909495918 is a wasteful number, since it uses less digits than its factorization.

40909495918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475691858.

The product of its (nonzero) digits is 4199040, while the sum is 58.

The spelling of 40909495918 in words is "forty billion, nine hundred nine million, four hundred ninety-five thousand, nine hundred eighteen".