38942543651 has 8 divisors (see below), whose sum is σ = 42489982704. Its totient is φ = 35396305920.

The previous prime is 38942543641. The next prime is 38942543669. The reversal of 38942543651 is 15634524983.

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

It is a cyclic number.

It is not a de Polignac number, because 38942543651 - 2²² = 38938349347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38942543651.

It is not an unprimeable number, because it can be changed into a prime (38942543641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231866 + ... + 362831.

It is an arithmetic number, because the mean of its divisors is an integer number (5311247838).

Almost surely, 2^38942543651 is an apocalyptic number.

38942543651 is a deficient number, since it is larger than the sum of its proper divisors (3547439053).

38942543651 is a wasteful number, since it uses less digits than its factorization.

38942543651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600661.

The product of its digits is 3110400, while the sum is 50.

The spelling of 38942543651 in words is "thirty-eight billion, nine hundred forty-two million, five hundred forty-three thousand, six hundred fifty-one".