187102894420 has 96 divisors (see below), whose sum is σ = 428571222912. Its totient is φ = 68198788608.

The previous prime is 187102894397. The next prime is 187102894439. The reversal of 187102894420 is 24498201781.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 37395639 + ... + 37400641.

It is an arithmetic number, because the mean of its divisors is an integer number (4464283572).

Almost surely, 2^187102894420 is an apocalyptic number.

187102894420 is a gapful number since it is divisible by the number (10) 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 187102894420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214285611456).

187102894420 is an abundant number, since it is smaller than the sum of its proper divisors (241468328492).

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

187102894420 is a wasteful number, since it uses less digits than its factorization.

187102894420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841 (or 6839 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 187102894420 in words is "one hundred eighty-seven billion, one hundred two million, eight hundred ninety-four thousand, four hundred twenty".