618667086678 has 16 divisors (see below), whose sum is σ = 1291131311616. Its totient is φ = 197256172520.

The previous prime is 618667086551. The next prime is 618667086679. The reversal of 618667086678 is 876680766816.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618667086679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241547278 + ... + 2241547553.

It is an arithmetic number, because the mean of its divisors is an integer number (80695706976).

Almost surely, 2^618667086678 is an apocalyptic number.

618667086678 is an abundant number, since it is smaller than the sum of its proper divisors (672464224938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618667086678 is a wasteful number, since it uses less digits than its factorization.

618667086678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483094859.

The product of its (nonzero) digits is 195084288, while the sum is 69.

The spelling of 618667086678 in words is "six hundred eighteen billion, six hundred sixty-seven million, eighty-six thousand, six hundred seventy-eight".