38364816686658 has 256 divisors, whose sum is σ = 98884180574208. Its totient is φ = 9634925664000.

The previous prime is 38364816686591. The next prime is 38364816686683. The reversal of 38364816686658 is 85668661846383.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6298604193 + ... + 6298610283.

It is an arithmetic number, because the mean of its divisors is an integer number (386266330368).

Almost surely, 2^{38364816686658} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38364816686658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49442090287104).

38364816686658 is an abundant number, since it is smaller than the sum of its proper divisors (60519363887550).

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

38364816686658 is a wasteful number, since it uses less digits than its factorization.

38364816686658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9861.

The product of its digits is 5733089280, while the sum is 78.

The spelling of 38364816686658 in words is "thirty-eight trillion, three hundred sixty-four billion, eight hundred sixteen million, six hundred eighty-six thousand, six hundred fifty-eight".