38543568157 has 4 divisors (see below), whose sum is σ = 38544106140. Its totient is φ = 38543030176.

The previous prime is 38543568149. The next prime is 38543568191. The reversal of 38543568157 is 75186534583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9434431161 + 29109136996 = 97131^2 + 170614^2 .

It is a cyclic number.

It is not a de Polignac number, because 38543568157 - 2³ = 38543568149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38543568098 and 38543568107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38543560157) 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 3 ways as a sum of consecutive naturals, for example, 141328 + ... + 311545.

It is an arithmetic number, because the mean of its divisors is an integer number (9636026535).

Almost surely, 2^38543568157 is an apocalyptic number.

It is an amenable number.

38543568157 is a deficient number, since it is larger than the sum of its proper divisors (537983).

38543568157 is an equidigital number, since it uses as much as digits as its factorization.

38543568157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537982.

The product of its digits is 12096000, while the sum is 55.

The spelling of 38543568157 in words is "thirty-eight billion, five hundred forty-three million, five hundred sixty-eight thousand, one hundred fifty-seven".