18485535038767 has 4 divisors (see below), whose sum is σ = 19289253953520. Its totient is φ = 17681816124016.

The previous prime is 18485535038717. The next prime is 18485535038771. The reversal of 18485535038767 is 76783053558481.

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-18485535038767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18485535038696 and 18485535038705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18485535038717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401859457342 + ... + 401859457387.

It is an arithmetic number, because the mean of its divisors is an integer number (4822313488380).

Almost surely, 2^{18485535038767} is an apocalyptic number.

18485535038767 is a deficient number, since it is larger than the sum of its proper divisors (803718914753).

18485535038767 is an equidigital number, since it uses as much as digits as its factorization.

18485535038767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803718914752.

The product of its (nonzero) digits is 677376000, while the sum is 70.

The spelling of 18485535038767 in words is "eighteen trillion, four hundred eighty-five billion, five hundred thirty-five million, thirty-eight thousand, seven hundred sixty-seven".