38634891606 has 48 divisors (see below), whose sum is σ = 86430165120. Its totient is φ = 12459847680.

The previous prime is 38634891601. The next prime is 38634891641. The reversal of 38634891606 is 60619843683.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38634891601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4073686 + ... + 4083158.

It is an arithmetic number, because the mean of its divisors is an integer number (1800628440).

Almost surely, 2^38634891606 is an apocalyptic number.

38634891606 is an abundant number, since it is smaller than the sum of its proper divisors (47795273514).

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

38634891606 is a wasteful number, since it uses less digits than its factorization.

38634891606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16821 (or 16818 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 38634891606 in words is "thirty-eight billion, six hundred thirty-four million, eight hundred ninety-one thousand, six hundred six".