18157300547 has 2 divisors, whose sum is σ = 18157300548. Its totient is φ = 18157300546.

The previous prime is 18157300541. The next prime is 18157300559. The reversal of 18157300547 is 74500375181.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18157300547 - 2¹⁶ = 18157235011 is a prime.

It is not a weakly prime, because it can be changed into another prime (18157300541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9078650273 + 9078650274.

It is an arithmetic number, because the mean of its divisors is an integer number (9078650274).

Almost surely, 2^18157300547 is an apocalyptic number.

18157300547 is a deficient number, since it is larger than the sum of its proper divisors (1).

18157300547 is an equidigital number, since it uses as much as digits as its factorization.

18157300547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 18157300547 in words is "eighteen billion, one hundred fifty-seven million, three hundred thousand, five hundred forty-seven".