187442342423 has 12 divisors (see below), whose sum is σ = 219382883640. Its totient is φ = 159679184112.

The previous prime is 187442342419. The next prime is 187442342467. The reversal of 187442342423 is 324243244781.

It is a happy number.

It is not a de Polignac number, because 187442342423 - 2² = 187442342419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187442342473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11726228 + ... + 11742201.

It is an arithmetic number, because the mean of its divisors is an integer number (18281906970).

Almost surely, 2^187442342423 is an apocalyptic number.

187442342423 is a deficient number, since it is larger than the sum of its proper divisors (31940541217).

187442342423 is a wasteful number, since it uses less digits than its factorization.

187442342423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23468606 (or 23468599 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 44.

The spelling of 187442342423 in words is "one hundred eighty-seven billion, four hundred forty-two million, three hundred forty-two thousand, four hundred twenty-three".