38197984668 has 48 divisors (see below), whose sum is σ = 92443933344. Its totient is φ = 12265862400.

The previous prime is 38197984663. The next prime is 38197984673. The reversal of 38197984668 is 86648979183.

It is an interprime number because it is at equal distance from previous prime (38197984663) and next prime (38197984673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38197984661) 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, 381055 + ... + 470742.

It is an arithmetic number, because the mean of its divisors is an integer number (1925915278).

Almost surely, 2^38197984668 is an apocalyptic number.

It is an amenable number.

38197984668 is an abundant number, since it is smaller than the sum of its proper divisors (54245948676).

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

38197984668 is a wasteful number, since it uses less digits than its factorization.

38197984668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851942 (or 851940 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 69.

The spelling of 38197984668 in words is "thirty-eight billion, one hundred ninety-seven million, nine hundred eighty-four thousand, six hundred sixty-eight".