185540798142 has 96 divisors (see below), whose sum is σ = 477825254400. Its totient is φ = 50925910464.

The previous prime is 185540798123. The next prime is 185540798171. The reversal of 185540798142 is 241897045581.

185540798142 is a `hidden beast` number, since 1 + 8 + 5 + 5 + 407 + 98 + 142 = 666.

It is a super-3 number, since 3×185540798142³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116409 + ... + 620187.

It is an arithmetic number, because the mean of its divisors is an integer number (4977346400).

Almost surely, 2^185540798142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 185540798142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238912627200).

185540798142 is an abundant number, since it is smaller than the sum of its proper divisors (292284456258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

185540798142 is a wasteful number, since it uses less digits than its factorization.

185540798142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503910 (or 503907 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 185540798142 in words is "one hundred eighty-five billion, five hundred forty million, seven hundred ninety-eight thousand, one hundred forty-two".