38218042545 has 16 divisors (see below), whose sum is σ = 61195189632. Its totient is φ = 20367515520.

The previous prime is 38218042543. The next prime is 38218042549. The reversal of 38218042545 is 54524081283.

38218042545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38218042545 - 2¹ = 38218042543 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38218042497 and 38218042506.

It is not an unprimeable number, because it can be changed into a prime (38218042543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944557 + ... + 984186.

It is an arithmetic number, because the mean of its divisors is an integer number (3824699352).

Almost surely, 2^38218042545 is an apocalyptic number.

It is an amenable number.

38218042545 is a deficient number, since it is larger than the sum of its proper divisors (22977147087).

38218042545 is a wasteful number, since it uses less digits than its factorization.

38218042545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930072.

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 38218042545 in words is "thirty-eight billion, two hundred eighteen million, forty-two thousand, five hundred forty-five".