40038568839 has 28 divisors (see below), whose sum is σ = 60073850736. Its totient is φ = 26673056352.

The previous prime is 40038568831. The next prime is 40038568853. The reversal of 40038568839 is 93886583004.

It is a happy number.

40038568839 is a `hidden beast` number, since 40 + 0 + 3 + 8 + 568 + 8 + 39 = 666.

It is not a de Polignac number, because 40038568839 - 2³ = 40038568831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40038568831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1025494 + ... + 1063820.

Almost surely, 2^40038568839 is an apocalyptic number.

40038568839 is a deficient number, since it is larger than the sum of its proper divisors (20035281897).

40038568839 is an equidigital number, since it uses as much as digits as its factorization.

40038568839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39778 (or 39763 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 40038568839 in words is "forty billion, thirty-eight million, five hundred sixty-eight thousand, eight hundred thirty-nine".