187374464423 has 16 divisors (see below), whose sum is σ = 209576459520. Its totient is φ = 166480292736.

The previous prime is 187374464411. The next prime is 187374464509. The reversal of 187374464423 is 324464473781.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187374464423 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 (187374464323) 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, 933515 + ... + 1116332.

It is an arithmetic number, because the mean of its divisors is an integer number (13098528720).

Almost surely, 2^187374464423 is an apocalyptic number.

187374464423 is a deficient number, since it is larger than the sum of its proper divisors (22201995097).

187374464423 is a wasteful number, since it uses less digits than its factorization.

187374464423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050166.

The product of its digits is 10838016, while the sum is 53.

The spelling of 187374464423 in words is "one hundred eighty-seven billion, three hundred seventy-four million, four hundred sixty-four thousand, four hundred twenty-three".