18894560346 has 12 divisors (see below), whose sum is σ = 40938214122. Its totient is φ = 6298186776.

The previous prime is 18894560339. The next prime is 18894560369. The reversal of 18894560346 is 64306549881.

18894560346 is a `hidden beast` number, since 188 + 9 + 456 + 0 + 3 + 4 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18677322225 + 217238121 = 136665^2 + 14739^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18894560292 and 18894560301.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 524848881 + ... + 524848916.

Almost surely, 2^18894560346 is an apocalyptic number.

18894560346 is an abundant number, since it is smaller than the sum of its proper divisors (22043653776).

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

18894560346 is a wasteful number, since it uses less digits than its factorization.

18894560346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049697805 (or 1049697802 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 18894560346 in words is "eighteen billion, eight hundred ninety-four million, five hundred sixty thousand, three hundred forty-six".