187449511120 has 40 divisors (see below), whose sum is σ = 436034234880. Its totient is φ = 74942966400.

The previous prime is 187449511091. The next prime is 187449511121. The reversal of 187449511120 is 21115944781.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187449511121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411456 + ... + 737695.

It is an arithmetic number, because the mean of its divisors is an integer number (10900855872).

Almost surely, 2^187449511120 is an apocalyptic number.

187449511120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

187449511120 is an abundant number, since it is smaller than the sum of its proper divisors (248584723760).

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

187449511120 is a wasteful number, since it uses less digits than its factorization.

187449511120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151203 (or 1151197 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 187449511120 in words is "one hundred eighty-seven billion, four hundred forty-nine million, five hundred eleven thousand, one hundred twenty".