187704849489 has 8 divisors (see below), whose sum is σ = 250659956160. Its totient is φ = 124943154576.

The previous prime is 187704849463. The next prime is 187704849503. The reversal of 187704849489 is 984948407781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 187704849489 - 2¹³ = 187704841297 is a prime.

It is a super-2 number, since 2×187704849489² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (187704849289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48350674 + ... + 48354555.

It is an arithmetic number, because the mean of its divisors is an integer number (31332494520).

Almost surely, 2^187704849489 is an apocalyptic number.

It is an amenable number.

187704849489 is a deficient number, since it is larger than the sum of its proper divisors (62955106671).

187704849489 is an equidigital number, since it uses as much as digits as its factorization.

187704849489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96705879.

The product of its (nonzero) digits is 130056192, while the sum is 69.

The spelling of 187704849489 in words is "one hundred eighty-seven billion, seven hundred four million, eight hundred forty-nine thousand, four hundred eighty-nine".