18651360242 has 16 divisors (see below), whose sum is σ = 29070795264. Its totient is φ = 8965080000.

The previous prime is 18651360239. The next prime is 18651360283. The reversal of 18651360242 is 24206315681.

It is a junction number, because it is equal to n+sod(n) for n = 18651360196 and 18651360205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986759 + ... + 1005482.

It is an arithmetic number, because the mean of its divisors is an integer number (1816924704).

Almost surely, 2^18651360242 is an apocalyptic number.

18651360242 is a deficient number, since it is larger than the sum of its proper divisors (10419435022).

18651360242 is a wasteful number, since it uses less digits than its factorization.

18651360242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992425.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 18651360242 in words is "eighteen billion, six hundred fifty-one million, three hundred sixty thousand, two hundred forty-two".