38757636373818 has 16 divisors (see below), whose sum is σ = 81595023945120. Its totient is φ = 12239253591696.

The previous prime is 38757636373817. The next prime is 38757636373843. The reversal of 38757636373818 is 81837363675783.

It is a self number, because there is not a number n which added to its sum of digits gives 38757636373818.

It is not an unprimeable number, because it can be changed into a prime (38757636373817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169989633105 + ... + 169989633332.

It is an arithmetic number, because the mean of its divisors is an integer number (5099688996570).

Almost surely, 2^{38757636373818} is an apocalyptic number.

38757636373818 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38757636373818 is an abundant number, since it is smaller than the sum of its proper divisors (42837387571302).

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

38757636373818 is a wasteful number, since it uses less digits than its factorization.

38757636373818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339979266461.

The product of its digits is 2560481280, while the sum is 75.

The spelling of 38757636373818 in words is "thirty-eight trillion, seven hundred fifty-seven billion, six hundred thirty-six million, three hundred seventy-three thousand, eight hundred eighteen".