18249792147 has 12 divisors (see below), whose sum is σ = 26383728384. Its totient is φ = 12155950800.

The previous prime is 18249792137. The next prime is 18249792151. The reversal of 18249792147 is 74129794281.

18249792147 is a `hidden beast` number, since 1 + 8 + 2 + 497 + 9 + 2 + 147 = 666.

It is not a de Polignac number, because 18249792147 - 2⁴ = 18249792131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18249792093 and 18249792102.

It is not an unprimeable number, because it can be changed into a prime (18249792107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 870508 + ... + 891225.

It is an arithmetic number, because the mean of its divisors is an integer number (2198644032).

Almost surely, 2^18249792147 is an apocalyptic number.

18249792147 is a deficient number, since it is larger than the sum of its proper divisors (8133936237).

18249792147 is a wasteful number, since it uses less digits than its factorization.

18249792147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762890 (or 1762887 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The spelling of 18249792147 in words is "eighteen billion, two hundred forty-nine million, seven hundred ninety-two thousand, one hundred forty-seven".