187240742823 has 16 divisors (see below), whose sum is σ = 250191119360. Its totient is φ = 124559053344.

The previous prime is 187240742807. The next prime is 187240742833. The reversal of 187240742823 is 328247042781.

It is a happy number.

It is not a de Polignac number, because 187240742823 - 2⁴ = 187240742807 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187240742833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2623590 + ... + 2694012.

It is an arithmetic number, because the mean of its divisors is an integer number (15636944960).

Almost surely, 2^187240742823 is an apocalyptic number.

187240742823 is a deficient number, since it is larger than the sum of its proper divisors (62950376537).

187240742823 is a wasteful number, since it uses less digits than its factorization.

187240742823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72318.

The product of its (nonzero) digits is 1204224, while the sum is 48.

The spelling of 187240742823 in words is "one hundred eighty-seven billion, two hundred forty million, seven hundred forty-two thousand, eight hundred twenty-three".