40273430668 has 6 divisors (see below), whose sum is σ = 70478503676. Its totient is φ = 20136715332.

The previous prime is 40273430657. The next prime is 40273430671. The reversal of 40273430668 is 86603437204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5034178830 + ... + 5034178837.

Almost surely, 2^40273430668 is an apocalyptic number.

It is an amenable number.

40273430668 is a deficient number, since it is larger than the sum of its proper divisors (30205073008).

40273430668 is a wasteful number, since it uses less digits than its factorization.

40273430668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068357671 (or 10068357669 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 40273430668 in words is "forty billion, two hundred seventy-three million, four hundred thirty thousand, six hundred sixty-eight".