187794349079 has 4 divisors (see below), whose sum is σ = 187884593520. Its totient is φ = 187704104640.

The previous prime is 187794349069. The next prime is 187794349081. The reversal of 187794349079 is 970943497781.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970943497781 = 61 ⋅15917106521.

It is a cyclic number.

It is not a de Polignac number, because 187794349079 - 2¹⁶ = 187794283543 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 (187794349069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45119099 + ... + 45123260.

It is an arithmetic number, because the mean of its divisors is an integer number (46971148380).

Almost surely, 2^187794349079 is an apocalyptic number.

187794349079 is a deficient number, since it is larger than the sum of its proper divisors (90244441).

187794349079 is an equidigital number, since it uses as much as digits as its factorization.

187794349079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90244440.

The product of its (nonzero) digits is 96018048, while the sum is 68.

The spelling of 187794349079 in words is "one hundred eighty-seven billion, seven hundred ninety-four million, three hundred forty-nine thousand, seventy-nine".