38732189785 has 16 divisors (see below), whose sum is σ = 49285861776. Its totient is φ = 29119684608.

The previous prime is 38732189767. The next prime is 38732189789. The reversal of 38732189785 is 58798123783.

It can be written as a sum of positive squares in 8 ways, for example, as 742671504 + 37989518281 = 27252^2 + 194909^2 .

It is not a de Polignac number, because 38732189785 - 2⁹ = 38732189273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38732189789) 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, 281334 + ... + 395743.

It is an arithmetic number, because the mean of its divisors is an integer number (3080366361).

Almost surely, 2^38732189785 is an apocalyptic number.

It is an amenable number.

38732189785 is a deficient number, since it is larger than the sum of its proper divisors (10553671991).

38732189785 is a wasteful number, since it uses less digits than its factorization.

38732189785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677772.

The product of its digits is 20321280, while the sum is 61.

The spelling of 38732189785 in words is "thirty-eight billion, seven hundred thirty-two million, one hundred eighty-nine thousand, seven hundred eighty-five".