38146784243 has 4 divisors (see below), whose sum is σ = 38147184888. Its totient is φ = 38146383600.

The previous prime is 38146784201. The next prime is 38146784257. The reversal of 38146784243 is 34248764183.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 38146784243 - 2²² = 38142589939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38146784191 and 38146784200.

It is not an unprimeable number, because it can be changed into a prime (38146783243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33380 + ... + 278222.

It is an arithmetic number, because the mean of its divisors is an integer number (9536796222).

Almost surely, 2^38146784243 is an apocalyptic number.

38146784243 is a deficient number, since it is larger than the sum of its proper divisors (400645).

38146784243 is a wasteful number, since it uses less digits than its factorization.

38146784243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400644.

The product of its digits is 3096576, while the sum is 50.

The spelling of 38146784243 in words is "thirty-eight billion, one hundred forty-six million, seven hundred eighty-four thousand, two hundred forty-three".