187197343872 has 256 divisors, whose sum is σ = 620432870400. Its totient is φ = 48583987200.

The previous prime is 187197343847. The next prime is 187197343967. The reversal of 187197343872 is 278343791781.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70400079 + ... + 70402737.

It is an arithmetic number, because the mean of its divisors is an integer number (2423565900).

Almost surely, 2^187197343872 is an apocalyptic number.

187197343872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 187197343872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310216435200).

187197343872 is an abundant number, since it is smaller than the sum of its proper divisors (433235526528).

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

187197343872 is a wasteful number, since it uses less digits than its factorization.

187197343872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075 (or 5063 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 60.

The spelling of 187197343872 in words is "one hundred eighty-seven billion, one hundred ninety-seven million, three hundred forty-three thousand, eight hundred seventy-two".