40427019693 has 12 divisors (see below), whose sum is σ = 58409209248. Its totient is φ = 26944596360.

The previous prime is 40427019683. The next prime is 40427019697. The reversal of 40427019693 is 39691072404.

It is a happy number.

40427019693 is a `hidden beast` number, since 404 + 2 + 70 + 1 + 96 + 93 = 666.

It is not a de Polignac number, because 40427019693 - 2⁹ = 40427019181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40427019697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524443 + ... + 596568.

It is an arithmetic number, because the mean of its divisors is an integer number (4867434104).

Almost surely, 2^40427019693 is an apocalyptic number.

It is an amenable number.

40427019693 is a deficient number, since it is larger than the sum of its proper divisors (17982189555).

40427019693 is a wasteful number, since it uses less digits than its factorization.

40427019693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125024 (or 1125021 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 40427019693 in words is "forty billion, four hundred twenty-seven million, nineteen thousand, six hundred ninety-three".