198459791613 has 24 divisors (see below), whose sum is σ = 310585511808. Its totient is φ = 121627884672.

The previous prime is 198459791603. The next prime is 198459791623. The reversal of 198459791613 is 316197954891.

198459791613 is a `hidden beast` number, since 1 + 9 + 8 + 4 + 5 + 9 + 7 + 9 + 1 + 613 = 666.

It is an interprime number because it is at equal distance from previous prime (198459791603) and next prime (198459791623).

It is not a de Polignac number, because 198459791613 - 2³⁷ = 61020838141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198459791603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15076245 + ... + 15089402.

It is an arithmetic number, because the mean of its divisors is an integer number (12941062992).

Almost surely, 2^198459791613 is an apocalyptic number.

It is an amenable number.

198459791613 is a deficient number, since it is larger than the sum of its proper divisors (112125720195).

198459791613 is a wasteful number, since it uses less digits than its factorization.

198459791613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30165713 (or 30165710 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 63.

The spelling of 198459791613 in words is "one hundred ninety-eight billion, four hundred fifty-nine million, seven hundred ninety-one thousand, six hundred thirteen".