18471280259 has 2 divisors, whose sum is σ = 18471280260. Its totient is φ = 18471280258.

The previous prime is 18471280211. The next prime is 18471280307. The reversal of 18471280259 is 95208217481.

It is a balanced prime because it is at equal distance from previous prime (18471280211) and next prime (18471280307).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18471280259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (18471280459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9235640129 + 9235640130.

It is an arithmetic number, because the mean of its divisors is an integer number (9235640130).

Almost surely, 2^18471280259 is an apocalyptic number.

18471280259 is a deficient number, since it is larger than the sum of its proper divisors (1).

18471280259 is an equidigital number, since it uses as much as digits as its factorization.

18471280259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 18471280259 in words is "eighteen billion, four hundred seventy-one million, two hundred eighty thousand, two hundred fifty-nine".