18859734147 has 8 divisors (see below), whose sum is σ = 25146955600. Its totient is φ = 12572834400.

The previous prime is 18859734107. The next prime is 18859734161. The reversal of 18859734147 is 74143795881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18859734147 - 2⁸ = 18859733891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18859734107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153897 + ... + 247797.

It is an arithmetic number, because the mean of its divisors is an integer number (3143369450).

Almost surely, 2^18859734147 is an apocalyptic number.

18859734147 is a deficient number, since it is larger than the sum of its proper divisors (6287221453).

18859734147 is an equidigital number, since it uses as much as digits as its factorization.

18859734147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160853.

The product of its digits is 6773760, while the sum is 57.

The spelling of 18859734147 in words is "eighteen billion, eight hundred fifty-nine million, seven hundred thirty-four thousand, one hundred forty-seven".