40676393018 has 24 divisors (see below), whose sum is σ = 63256120668. Its totient is φ = 19616672768.

The previous prime is 40676393003. The next prime is 40676393039. The reversal of 40676393018 is 81039367604.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2043311209 + 38633081809 = 45203^2 + 196553^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1691930 + ... + 1715802.

Almost surely, 2^40676393018 is an apocalyptic number.

40676393018 is a deficient number, since it is larger than the sum of its proper divisors (22579727650).

40676393018 is a wasteful number, since it uses less digits than its factorization.

40676393018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24946 (or 24917 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 40676393018 in words is "forty billion, six hundred seventy-six million, three hundred ninety-three thousand, eighteen".