38212765493 has 12 divisors (see below), whose sum is σ = 45060514380. Its totient is φ = 32305113792.

The previous prime is 38212765471. The next prime is 38212765531. The reversal of 38212765493 is 39456721283.

It can be written as a sum of positive squares in 2 ways, for example, as 30524632369 + 7688133124 = 174713^2 + 87682^2 .

It is not a de Polignac number, because 38212765493 - 2¹⁴ = 38212749109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38212765463) 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 11 ways as a sum of consecutive naturals, for example, 5337878 + ... + 5345031.

It is an arithmetic number, because the mean of its divisors is an integer number (3755042865).

Almost surely, 2^38212765493 is an apocalyptic number.

It is an amenable number.

38212765493 is a deficient number, since it is larger than the sum of its proper divisors (6847748887).

38212765493 is a wasteful number, since it uses less digits than its factorization.

38212765493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10682996 (or 10682989 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The spelling of 38212765493 in words is "thirty-eight billion, two hundred twelve million, seven hundred sixty-five thousand, four hundred ninety-three".