18459690040712 has 36 divisors (see below), whose sum is σ = 35278526581935. Its totient is φ = 9055381042240.

The previous prime is 18459690040681. The next prime is 18459690040733. The reversal of 18459690040712 is 21704009695481.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 18234830091076 + 224859949636 = 4270226^2 + 474194^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3038066.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 644055662 + ... + 644084322.

Almost surely, 2^{18459690040712} is an apocalyptic number.

It is an amenable number.

18459690040712 is a deficient number, since it is larger than the sum of its proper divisors (16818836541223).

18459690040712 is an frugal number, since it uses more digits than its factorization.

18459690040712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57434 (or 28716 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 18459690040712 in words is "eighteen trillion, four hundred fifty-nine billion, six hundred ninety million, forty thousand, seven hundred twelve".