18741047355 has 20 divisors (see below), whose sum is σ = 33595063392. Its totient is φ = 9995225040.

The previous prime is 18741047329. The next prime is 18741047357. The reversal of 18741047355 is 55374014781.

18741047355 is a `hidden beast` number, since 187 + 410 + 4 + 7 + 3 + 55 = 666.

It is not a de Polignac number, because 18741047355 - 2⁸ = 18741047099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18741047355.

It is not an unprimeable number, because it can be changed into a prime (18741047357) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 23136691 + ... + 23137500.

Almost surely, 2^18741047355 is an apocalyptic number.

18741047355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18741047355 is a deficient number, since it is larger than the sum of its proper divisors (14854016037).

18741047355 is an equidigital number, since it uses as much as digits as its factorization.

18741047355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46274208 (or 46274199 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 18741047355 in words is "eighteen billion, seven hundred forty-one million, forty-seven thousand, three hundred fifty-five".