38071681851 has 64 divisors (see below), whose sum is σ = 62526464000. Its totient is φ = 20539860768.

The previous prime is 38071681847. The next prime is 38071681859. The reversal of 38071681851 is 15818617083.

It is not a de Polignac number, because 38071681851 - 2² = 38071681847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38071681851.

It is not an unprimeable number, because it can be changed into a prime (38071681859) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5998986 + ... + 6005328.

It is an arithmetic number, because the mean of its divisors is an integer number (976976000).

Almost surely, 2^38071681851 is an apocalyptic number.

38071681851 is a deficient number, since it is larger than the sum of its proper divisors (24454782149).

38071681851 is a wasteful number, since it uses less digits than its factorization.

38071681851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693 (or 6679 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 38071681851 in words is "thirty-eight billion, seventy-one million, six hundred eighty-one thousand, eight hundred fifty-one".