18678400650360 has 256 divisors, whose sum is σ = 71496271296000. Its totient is φ = 4289776174080.

The previous prime is 18678400650337. The next prime is 18678400650373. The reversal of 18678400650360 is 6305600487681.

18678400650360 is a `hidden beast` number, since 1 + 8 + 6 + 78 + 4 + 0 + 0 + 6 + 503 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 18678400650297 and 18678400650306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41149437 + ... + 41600876.

It is an arithmetic number, because the mean of its divisors is an integer number (279282309750).

Almost surely, 2^{18678400650360} is an apocalyptic number.

18678400650360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18678400650360 is an abundant number, since it is smaller than the sum of its proper divisors (52817870645640).

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

18678400650360 is a wasteful number, since it uses less digits than its factorization.

18678400650360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82750363 (or 82750353 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 18678400650360 in words is "eighteen trillion, six hundred seventy-eight billion, four hundred million, six hundred fifty thousand, three hundred sixty".