38120664609 has 28 divisors (see below), whose sum is σ = 57252861456. Its totient is φ = 25370197272.

The previous prime is 38120664583. The next prime is 38120664613. The reversal of 38120664609 is 90646602183.

38120664609 is a `hidden beast` number, since 3 + 8 + 120 + 66 + 460 + 9 = 666.

It is not a de Polignac number, because 38120664609 - 2¹³ = 38120656417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38120664679) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 383382 + ... + 472464.

It is an arithmetic number, because the mean of its divisors is an integer number (2044745052).

Almost surely, 2^38120664609 is an apocalyptic number.

It is an amenable number.

38120664609 is a deficient number, since it is larger than the sum of its proper divisors (19132196847).

38120664609 is an frugal number, since it uses more digits than its factorization.

38120664609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89688 (or 89673 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 38120664609 in words is "thirty-eight billion, one hundred twenty million, six hundred sixty-four thousand, six hundred nine".