18098051841 has 9 divisors (see below), whose sum is σ = 26142213409. Its totient is φ = 12065098836.

The previous prime is 18098051827. The next prime is 18098051849. The reversal of 18098051841 is 14815089081.

The square root of 18098051841 is 134529.

It is a perfect power (a square), and thus also a powerful number.

18098051841 is a `hidden beast` number, since 1 + 8 + 0 + 98 + 0 + 518 + 41 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 18098051841 - 2²³ = 18089663233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18098051849) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 381166 + ... + 426008.

Almost surely, 2^18098051841 is an apocalyptic number.

18098051841 is the 134529-th square number.

18098051841 is the 67265-th centered octagonal number.

It is an amenable number.

18098051841 is a deficient number, since it is larger than the sum of its proper divisors (8044161568).

18098051841 is an frugal number, since it uses more digits than its factorization.

18098051841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89692 (or 44846 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 45.

The spelling of 18098051841 in words is "eighteen billion, ninety-eight million, fifty-one thousand, eight hundred forty-one".