18677785214 has 32 divisors (see below), whose sum is σ = 32634226944. Its totient is φ = 7931911680.

The previous prime is 18677785201. The next prime is 18677785241. The reversal of 18677785214 is 41258777681.

It is a self number, because there is not a number n which added to its sum of digits gives 18677785214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407459 + ... + 450974.

It is an arithmetic number, because the mean of its divisors is an integer number (1019819592).

Almost surely, 2^18677785214 is an apocalyptic number.

18677785214 is a deficient number, since it is larger than the sum of its proper divisors (13956441730).

18677785214 is a wasteful number, since it uses less digits than its factorization.

18677785214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858512.

The product of its digits is 5268480, while the sum is 56.

The spelling of 18677785214 in words is "eighteen billion, six hundred seventy-seven million, seven hundred eighty-five thousand, two hundred fourteen".