38994491769066 has 24 divisors (see below), whose sum is σ = 84689707677120. Its totient is φ = 12967142049576.

The previous prime is 38994491769043. The next prime is 38994491769067. The reversal of 38994491769066 is 66096719449983.

38994491769066 is a `hidden beast` number, since 3 + 8 + 9 + 9 + 4 + 491 + 7 + 69 + 0 + 66 = 666.

It is not an unprimeable number, because it can be changed into a prime (38994491769067) 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, 2585148370 + ... + 2585163453.

It is an arithmetic number, because the mean of its divisors is an integer number (3528737819880).

Almost surely, 2^{38994491769066} is an apocalyptic number.

38994491769066 is an abundant number, since it is smaller than the sum of its proper divisors (45695215908054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38994491769066 is a wasteful number, since it uses less digits than its factorization.

38994491769066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5170312250 (or 5170312247 counting only the distinct ones).

The product of its (nonzero) digits is 3809369088, while the sum is 81.

The spelling of 38994491769066 in words is "thirty-eight trillion, nine hundred ninety-four billion, four hundred ninety-one million, seven hundred sixty-nine thousand, sixty-six".