38505118651 has 4 divisors (see below), whose sum is σ = 38585505600. Its totient is φ = 38424731704.

The previous prime is 38505118559. The next prime is 38505118657. The reversal of 38505118651 is 15681150583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38505118651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38505118598 and 38505118607.

It is not an unprimeable number, because it can be changed into a prime (38505118657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40192756 + ... + 40193713.

It is an arithmetic number, because the mean of its divisors is an integer number (9646376400).

Almost surely, 2^38505118651 is an apocalyptic number.

38505118651 is a deficient number, since it is larger than the sum of its proper divisors (80386949).

38505118651 is an equidigital number, since it uses as much as digits as its factorization.

38505118651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80386948.

The product of its (nonzero) digits is 144000, while the sum is 43.

The spelling of 38505118651 in words is "thirty-eight billion, five hundred five million, one hundred eighteen thousand, six hundred fifty-one".