18285890745601 has 16 divisors (see below), whose sum is σ = 18470989059264. Its totient is φ = 18101797642944.

The previous prime is 18285890745599. The next prime is 18285890745623. The reversal of 18285890745601 is 10654709858281.

It is a cyclic number.

It is not a de Polignac number, because 18285890745601 - 2¹ = 18285890745599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18285890745631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68249566 + ... + 68516968.

It is an arithmetic number, because the mean of its divisors is an integer number (1154436816204).

Almost surely, 2^{18285890745601} is an apocalyptic number.

It is an amenable number.

18285890745601 is a deficient number, since it is larger than the sum of its proper divisors (185098313663).

18285890745601 is a wasteful number, since it uses less digits than its factorization.

18285890745601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269280.

The product of its (nonzero) digits is 38707200, while the sum is 64.

The spelling of 18285890745601 in words is "eighteen trillion, two hundred eighty-five billion, eight hundred ninety million, seven hundred forty-five thousand, six hundred one".