18127669061 has 4 divisors (see below), whose sum is σ = 18303665952. Its totient is φ = 17951672172.

The previous prime is 18127669031. The next prime is 18127669081. The reversal of 18127669061 is 16096672181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18127669061 - 2⁶ = 18127668997 is a prime.

It is a super-2 number, since 2×18127669061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18127668997 and 18127669015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18127669031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87998291 + ... + 87998496.

It is an arithmetic number, because the mean of its divisors is an integer number (4575916488).

Almost surely, 2^18127669061 is an apocalyptic number.

It is an amenable number.

18127669061 is a deficient number, since it is larger than the sum of its proper divisors (175996891).

18127669061 is a wasteful number, since it uses less digits than its factorization.

18127669061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175996890.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 18127669061 in words is "eighteen billion, one hundred twenty-seven million, six hundred sixty-nine thousand, sixty-one".