18488560677 has 16 divisors (see below), whose sum is σ = 24789319680. Its totient is φ = 12256801200.

The previous prime is 18488560637. The next prime is 18488560687. The reversal of 18488560677 is 77606588481.

It is a happy number.

It is not a de Polignac number, because 18488560677 - 2¹¹ = 18488558629 is a prime.

It is a super-2 number, since 2×18488560677² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18488560677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18488560637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764824 + ... + 2771502.

It is an arithmetic number, because the mean of its divisors is an integer number (1549332480).

Almost surely, 2^18488560677 is an apocalyptic number.

It is an amenable number.

18488560677 is a deficient number, since it is larger than the sum of its proper divisors (6300759003).

18488560677 is a wasteful number, since it uses less digits than its factorization.

18488560677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11704.

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 18488560677 in words is "eighteen billion, four hundred eighty-eight million, five hundred sixty thousand, six hundred seventy-seven".