38782431243 has 12 divisors (see below), whose sum is σ = 56390056528. Its totient is φ = 25683728400.

The previous prime is 38782431241. The next prime is 38782431269. The reversal of 38782431243 is 34213428783.

38782431243 is a `hidden beast` number, since 387 + 8 + 24 + 3 + 1 + 243 = 666.

It is not a de Polignac number, because 38782431243 - 2¹ = 38782431241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38782431241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14267380 + ... + 14270097.

Almost surely, 2^38782431243 is an apocalyptic number.

38782431243 is a deficient number, since it is larger than the sum of its proper divisors (17607625285).

38782431243 is a wasteful number, since it uses less digits than its factorization.

38782431243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537634 (or 28537631 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The spelling of 38782431243 in words is "thirty-eight billion, seven hundred eighty-two million, four hundred thirty-one thousand, two hundred forty-three".